assets: Make checkmark a pixel-perfect copy of qstyle

(cherry picked from commit c5e78a78)

src/assets/checkmark-symbolic.svg

 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <svg
-   width="16"
-   height="16"
-   viewBox="0 0 16 16"
+   width="14"
+   height="14"
+   viewBox="0 0 14 14"
    fill="none"
    version="1.1"
    id="svg27"
    sodipodi:docname="checkmark-symbolic.svg"
-   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20, custom)"
+   inkscape:version="1.2 (dc2aedaf03, 2022-05-15)"
    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"
@@ -23,24 +23,28 @@
      inkscape:pageopacity="0"
      inkscape:pagecheckerboard="0"
      showgrid="true"
-     inkscape:zoom="44.636117"
-     inkscape:cx="10.227144"
-     inkscape:cy="7.0458638"
-     inkscape:window-width="1320"
-     inkscape:window-height="707"
-     inkscape:window-x="46"
-     inkscape:window-y="32"
+     inkscape:zoom="126.25"
+     inkscape:cx="6.1148515"
+     inkscape:cy="7.3227723"
+     inkscape:window-width="2560"
+     inkscape:window-height="1371"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
      inkscape:window-maximized="1"
      inkscape:current-layer="g1325"
      showguides="true"
-     inkscape:guide-bbox="true" />
+     inkscape:guide-bbox="true"
+     inkscape:showpageshadow="2"
+     inkscape:deskcolor="#505050"
+     shape-rendering="crispEdges" />
   <g
      id="g1325">
     <path
        class="fg"
-       d="M 13.586,3.5430001 7,10.129 3.414,6.5429998 2,7.9569998 7,12.957 15,4.9569999 Z"
+       d="M 11.456375,3.0925 5.9803125,8.5235 3.00875,5.5085 1.5549062,6.963 5.9850937,11.437 12.915,4.5515 Z"
        fill="#000000"
        id="path7"
-       sodipodi:nodetypes="ccccccc" />
+       sodipodi:nodetypes="ccccccc"
+       style="stroke-width:0.855" />
   </g>
 </svg>