Add icons at missing sizes, clean up SVG metadata

Adds app icon at 24px, 32px, 64px, 96px. This should give a
cleaner look in system menus like App Finder, Whisker Menu.

Removes export path strings from SVGs, metadata which Inkscape added on export.

Note:
Inkscape has recently changed this to use relative
paths so it shouldn't be an issue in the future.

data/icons/scalable/org.xfce.taskmanager.svg

@@ -1,25 +1,24 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <svg
-   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:xlink="http://www.w3.org/1999/xlink"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
    width="128"
    height="128"
    id="svg11300"
    version="1.0"
    style="display:inline;enable-background:new"
    viewBox="0 0 128 128"
-   sodipodi:docname="org.xfce.TaskManager.svg"
-   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"
-   inkscape:export-filename="/home/maug/Downloads/xfce4-taskmanager.svg.png"
-   inkscape:export-xdpi="36"
-   inkscape:export-ydpi="36">
+   sodipodi:docname="org.xfce.taskmanager.svg"
+   inkscape:version="1.2.2 (b0a8486541, 2022-12-01)"
+   inkscape:export-filename="org.xfce.taskmanager.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
   <sodipodi:namedview
      pagecolor="#ffffff"
      bordercolor="#666666"
@@ -30,12 +29,12 @@
      inkscape:pageopacity="0"
      inkscape:pageshadow="2"
      inkscape:window-width="1920"
-     inkscape:window-height="1019"
+     inkscape:window-height="1030"
      id="namedview44"
      showgrid="true"
      inkscape:zoom="5.6568544"
-     inkscape:cx="45.284299"
-     inkscape:cy="76.301326"
+     inkscape:cx="25.013902"
+     inkscape:cy="76.632695"
      inkscape:window-x="0"
      inkscape:window-y="0"
      inkscape:window-maximized="1"
@@ -43,7 +42,9 @@
      inkscape:lockguides="true"
      showguides="true"
      inkscape:guide-bbox="true"
-     inkscape:pagecheckerboard="false">
+     inkscape:pagecheckerboard="false"
+     inkscape:showpageshadow="2"
+     inkscape:deskcolor="#d1d1d1">
     <inkscape:grid
        type="xygrid"
        id="grid4761"
@@ -177,7 +178,7 @@
        gradientUnits="userSpaceOnUse" />
     <linearGradient
        id="linearGradient1020"
-       osb:paint="gradient">
+       inkscape:swatch="gradient">
       <stop
          style="stop-color:#ffffff;stop-opacity:1;"
          offset="0"
@@ -257,58 +258,8 @@
     <rdf:RDF>
       <cc:Work
          rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:creator>
-          <cc:Agent>
-            <dc:title>GNOME Design Team</dc:title>
-          </cc:Agent>
-        </dc:creator>
-        <dc:source />
-        <cc:license
-           rdf:resource="http://creativecommons.org/licenses/by-sa/4.0/" />
         <dc:title>Adwaita Icon Template</dc:title>
-        <dc:subject>
-          <rdf:Bag />
-        </dc:subject>
-        <dc:date />
-        <dc:rights>
-          <cc:Agent>
-            <dc:title />
-          </cc:Agent>
-        </dc:rights>
-        <dc:publisher>
-          <cc:Agent>
-            <dc:title />
-          </cc:Agent>
-        </dc:publisher>
-        <dc:identifier />
-        <dc:relation />
-        <dc:language />
-        <dc:coverage />
-        <dc:description />
-        <dc:contributor>
-          <cc:Agent>
-            <dc:title />
-          </cc:Agent>
-        </dc:contributor>
       </cc:Work>
-      <cc:License
-         rdf:about="http://creativecommons.org/licenses/by-sa/4.0/">
-        <cc:permits
-           rdf:resource="http://creativecommons.org/ns#Reproduction" />
-        <cc:permits
-           rdf:resource="http://creativecommons.org/ns#Distribution" />
-        <cc:requires
-           rdf:resource="http://creativecommons.org/ns#Notice" />
-        <cc:requires
-           rdf:resource="http://creativecommons.org/ns#Attribution" />
-        <cc:permits
-           rdf:resource="http://creativecommons.org/ns#DerivativeWorks" />
-        <cc:requires
-           rdf:resource="http://creativecommons.org/ns#ShareAlike" />
-      </cc:License>
     </rdf:RDF>
   </metadata>
   <rect
@@ -318,17 +269,17 @@
      height="102"
      x="8"
      y="12"
-     ry="8.0792074"
+     ry="8"
      rx="7.9999995" />
   <rect
-     style="display:inline;opacity:1;vector-effect:none;fill:#162631;fill-opacity:1;stroke:none;stroke-width:0.01173339px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal;enable-background:new"
+     style="display:inline;opacity:1;vector-effect:none;fill:#162631;fill-opacity:1;stroke:none;stroke-width:0.0117334px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal;enable-background:new"
      id="rect946-0-7-4"
      width="96"
      height="92"
      x="16"
      y="16"
-     ry="4.1343207"
-     rx="4.2047758" />
+     ry="4"
+     rx="4" />
   <path
      style="display:inline;opacity:1;vector-effect:none;fill:#758087;fill-opacity:1;stroke:none;stroke-width:0.01129821px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal;enable-background:new"
      d="m 7.99999,104 v 4 c 0,4.432 3.568,8 8,8 h 96 c 4.432,0 8,-3.568 8,-8 v -4 c 0,4.432 -3.568,8 -8,8 h -96 c -4.432,0 -8,-3.568 -8,-8 z"
@@ -341,13 +292,10 @@
      height="84"
      width="88"
      id="rect968-2"
-     style="display:inline;opacity:0.05;vector-effect:none;fill:#000080;fill-opacity:1;stroke:none;stroke-width:0.01275351px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal;enable-background:new"
+     style="display:inline;opacity:0.05;vector-effect:none;fill:#000080;fill-opacity:1;stroke:none;stroke-width:0.0127535px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal;enable-background:new"
      transform="scale(-1)"
-     ry="1.0243902" />
-  <g
-     transform="translate(0,-170)"
-     id="g1063"
-     style="display:inline" />
+     ry="1"
+     rx="1" />
   <path
      id="path1092-6-1-3-7-5-1-0-3"
      style="display:inline;opacity:0.23000004;fill:none;stroke:#00aad7;stroke-width:4;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1;enable-background:new"