fix: route all requests to index.html to allow direct links e.g. direct to posts (#36)

Co-authored-by: Roman Popat <roman.popat@proton.me>

Author: rmnppt

bs3/firebase.json

@@ -9,6 +9,12 @@
       "firebase.json",
       "**/.*",
       "**/node_modules/**"
+    ],
+    "rewrites": [
+      {
+        "source": "**",
+        "destination": "/index.html"
+      }
     ]
   }
 }