feat: add various system and theme icons, configuration files, and support assets

squashfs-root/usr/share/icons/ubuntu-mono-dark/apps/22/system-file-manager-panel.svg

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg id="svg3801" width="22" height="22" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:xlink="http://www.w3.org/1999/xlink">
+ <metadata id="metadata16">
+  <rdf:RDF>
+   <cc:Work rdf:about="">
+    <dc:format>image/svg+xml</dc:format>
+    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+   </cc:Work>
+  </rdf:RDF>
+ </metadata>
+ <g id="layer1-5" transform="translate(-7.5 -4.5)" style="color:#000000;fill-rule:evenodd;opacity:.3">
+  <path id="path3970-4" d="m13.645 8.5 9.8551 9.3175-4.4928 0.14118 1.8841 3.8117c0.57971 1.6941-2.029 2.3294-2.4638 1.0588 0 0-1.7391-3.8117-1.7391-3.8117l-3.1884 3.3176 0.14493-13.835z" style="color:#000000;fill-rule:evenodd"/>
+ </g>
+ <g id="layer1-2" transform="translate(-7.5 -5.5)" style="color:#000000;fill-rule:evenodd;fill:#dfdbd2">
+  <path id="path3970" d="m13.645 8.5 9.8551 9.3175-4.4928 0.14118 1.8841 3.8117c0.57971 1.6941-2.029 2.3294-2.4638 1.0588 0 0-1.7391-3.8117-1.7391-3.8117l-3.1884 3.3176 0.14493-13.835z" style="color:#000000;fill-rule:evenodd;fill:#dfdbd2"/>
+ </g>
+</svg>