dynamic favicon that indicates if an entry is running (#4038)

public/build/entrypoints.json

@@ -3,7 +3,7 @@
     "app": {
       "js": [
         "/build/runtime.f0079159.js",
-        "/build/app.70a820f6.js"
+        "/build/app.f0378e96.js"
       ],
       "css": [
         "/build/app.2005c135.css"
@@ -63,7 +63,7 @@
   },
   "integrity": {
     "/build/runtime.f0079159.js": "sha384-H22sAW1aTvyIPqvHOvGXWSWTxf0y6mptp+MsVmyXCfjx/WJjBbhX9gbUZ+qIuihV",
-    "/build/app.70a820f6.js": "sha384-WKz8wOwY8EYT1ncPkMRnEE3q5LnP76keOZxTD410dXpsowUktUg+vWUqDhVXwLat",
+    "/build/app.f0378e96.js": "sha384-ohZkuGMYJFa1nD/JJb1XJy6CYfqk/ubIo9QuY3yYJFg7NEG+0U93+YIIvUnCm2xm",
     "/build/app.2005c135.css": "sha384-mXP2EO6K1kvUNEFBxLHjXlgkfWSFtyLC1rFhhX5qMbpOHvZrl8Ny1zP03ToPkF6d",
     "/build/export-pdf.d367a32e.js": "sha384-Z5baqnzjI636nYFs4g63ViIKBZKRW4Jhv/7PQmTEQlqhfA7eK0vUMUtiyy0R5A9u",
     "/build/export-pdf.d8a6c23b.css": "sha384-ztepocHE4rnGE9eKZ4kL6jTKaePUyiwiB9TjJjstjpf/ckcKg1HedrEOOk/8ElJg",