Merge branch 'drop-ie11' into 'develop'

Drop IE11 support

See merge request soapbox-pub/soapbox-fe!749

package.json

@@ -31,7 +31,7 @@
   "browserslist": [
     "> 0.5%",
     "last 2 versions",
-    "Firefox ESR",
+    "not IE 11",
     "not dead"
   ],
   "dependencies": {