Add local `logo` SVG source for use in groups menu

src/images/icons/logo.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg width="24px" height="28px" viewBox="0 0 24 28" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <rect fill="#ffffff" stroke="none" width="17.14407" height="16.046612" x="3.8855932" y="3.9449153" />
+    <g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <path d="M0,2.00494659 C0,0.897645164 0.897026226,0 2.00494659,0 L21.9950534,0 C23.1023548,0 24,0.897026226 24,2.00494659 L24,21.9950534 C24,23.1023548 23.1029738,24 21.9950534,24 L2.00494659,24 C0.897645164,24 0,23.1029738 0,21.9950534 L0,2.00494659 Z M9,24 L12,28 L15,24 L9,24 Z M7.00811294,4 L4,4 L4,20 L7.00811294,20 L7.00811294,15.0028975 C7.00811294,12.004636 8.16824717,12.0097227 9,12 C10,12.0072451 11.0189302,12.0606714 11.0189302,14.003477 L11.0189302,20 L14.0270431,20 L14.0270431,13.1087862 C14.0270433,10 12,9.00309038 10,9.00309064 C8.01081726,9.00309091 8,9.00309086 7.00811294,11.0019317 L7.00811294,4 Z M19,19.9869002 C20.1045695,19.9869002 21,19.0944022 21,17.9934501 C21,16.892498 20.1045695,16 19,16 C17.8954305,16 17,16.892498 17,17.9934501 C17,19.0944022 17.8954305,19.9869002 19,19.9869002 Z" fill="currentColor"></path>
+    </g>
+</svg>
\ No newline at end of file

src/sidebar/services/groups.js

@@ -11,11 +11,8 @@ import { watch } from '../util/watch';
 const DEFAULT_ORG_ID = '__default__';
 
 // @ts-ignore - TS doesn't know about SVG files.
-import { logo } from '@hypothesis/frontend-shared/lib/icons';
+import { default as logo } from '../../images/icons/logo.svg';
 
-/**
- * FIXME: There is almost assuredly a better way to handle a fallback, default logo
- */
 const DEFAULT_ORGANIZATION = {
   id: DEFAULT_ORG_ID,
   name: '__DEFAULT__',