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

squashfs-root/usr/share/icons/Humanity/status/22/gpm-battery-missing.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg id="svg3196" width="22" height="22" version="1.0" xmlns="http://www.w3.org/2000/svg">
+ <rect id="rect2388" transform="rotate(-90)" x="-18.5" y="6.5" width="14" height="9" rx="0" ry="0" style="fill:none;stroke-linecap:square;stroke:#ff0f0f"/>
+ <path id="rect3160" d="m9.5 4.5v-2h3v2" style="fill:none;stroke-linecap:square;stroke:#ff0f0f"/>
+ <path id="rect3592" d="m10 7h2v6h-2v-6zm0 7h2v2h-2v-2z" style="color:#000000;fill:#ff0f0f"/>
+</svg>