Add missing symbols and fix naming

assets/symbols/u0023F8.svg

@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="128"
+   height="128"
+   viewBox="0 0 128 128"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.2.1 (9c6d41e410, 2022-07-14)"
+   sodipodi:docname="u23F8.svg"
+   style="fill: currentColor;"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="true"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="px"
+     showgrid="false"
+     inkscape:zoom="4"
+     inkscape:cx="61.625"
+     inkscape:cy="64.25"
+     inkscape:window-width="1278"
+     inkscape:window-height="1401"
+     inkscape:window-x="1266"
+     inkscape:window-y="0"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="layer1" />
+  <defs
+     id="defs2">
+    <linearGradient
+       id="linearGradient795"
+       inkscape:swatch="solid">
+      <stop
+         style="stop-color:#000000;stop-opacity:1;"
+         offset="0"
+         id="stop793" />
+    </linearGradient>
+  </defs>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <rect
+       style="fill-opacity:1;stroke:none;stroke-width:181.104;stroke-linecap:round;fill:#ffffff"
+       id="rect6858"
+       width="48"
+       height="128"
+       x="0"
+       y="0" />
+    <rect
+       style="fill-opacity:1;stroke:none;stroke-width:152.989;stroke-linecap:round;fill:#ffffff"
+       id="rect6860"
+       width="48"
+       height="128"
+       x="80"
+       y="0" />
+  </g>
+</svg>