Added chat message status icons

resources/icons/checkmark.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="96"
+   height="96"
+   viewBox="0 0 96 96"
+   version="1.1"
+   id="svg10"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs14" />
+  <g
+     data-name="Layer 2"
+     id="g8">
+    <g
+       data-name="checkmark"
+       id="g6"
+       transform="scale(4)">
+      <rect
+         width="24"
+         height="24"
+         opacity="0"
+         id="rect2"
+         x="0"
+         y="0" />
+      <path
+         d="M 9.86,18 A 1,1 0 0 1 9.13,17.68 L 4.27,12.51 a 1.0010619,1.0010619 0 1 1 1.46,-1.37 l 4.12,4.39 8.41,-9.2 a 1,1 0 1 1 1.48,1.34 l -9.14,10 A 1,1 0 0 1 9.87,18 Z"
+         id="path4" />
+    </g>
+  </g>
+</svg>

resources/icons/warning.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="96"
+   height="96"
+   viewBox="0 0 96 96"
+   version="1.1"
+   id="svg906"
+   sodipodi:docname="warning.svg"
+   inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)"
+   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">
+  <defs
+     id="defs910" />
+  <sodipodi:namedview
+     id="namedview908"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     showgrid="false"
+     inkscape:zoom="8.4189901"
+     inkscape:cx="44.185822"
+     inkscape:cy="41.750851"
+     inkscape:window-width="3440"
+     inkscape:window-height="1383"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1" />
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     inkscape:label="Layer 1"
+     style="display:inline">
+    <g
+       id="g3976"
+       transform="matrix(4.8,0,0,4.8,-9.5999995,-9.5999995)">
+      <path
+         id="path2289"
+         style="fill:none;fill-opacity:0.453339;stroke:#000000;stroke-width:1.72662"
+         d="M 21.13669,11.999999 A 9.1366901,9.1366892 0 0 1 12,21.136688 9.1366901,9.1366892 0 0 1 2.8633099,11.999999 9.1366901,9.1366892 0 0 1 12,2.8633099 9.1366901,9.1366892 0 0 1 21.13669,11.999999 Z" />
+      <path
+         id="path2433"
+         style="stroke-width:0"
+         d="m 13.000001,16 a 1,1 0 0 1 -1,1 1,1 0 0 1 -1,-1 1,1 0 0 1 1,-1 1,1 0 0 1 1,1 z" />
+      <path
+         d="m 13,13 c 0,1.333332 -2,1.333332 -2,0 V 8 c 0,-1.333333 2,-1.333333 2,0 z"
+         id="path3219" />
+      <path
+         id="path3890"
+         style="fill:none;stroke:#000000;stroke-width:0"
+         d="M 3.6997415,3.2783337 A 0.21788567,0.32577345 0 0 1 3.4818559,3.6041071 0.21788567,0.32577345 0 0 1 3.2639702,3.2783337 0.21788567,0.32577345 0 0 1 3.4818559,2.9525602 0.21788567,0.32577345 0 0 1 3.6997415,3.2783337 Z" />
+    </g>
+  </g>
+</svg>