Add pwa support

web/manifest.json

@@ -1,17 +1,23 @@
 {
-    "short_name": "FluffyChat",
     "name": "FluffyChat",
-    "description": "Chat with your friends",
+    "short_name": "FluffyChat",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "The cutest messenger in the Matrix network",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
     "icons": [
         {
-            "src": "assets/assets/logo.png",
-            "type": "image/png",
-            "sizes": "181x182"
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
         }
-    ],
-    "start_url": "https://christianpauly.gitlab.io/fluffychat-flutter",
-    "background_color": "#FFFFFF",
-    "display": "standalone",
-    "scope": "/",
-    "theme_color": "#5625BA"
+    ]
 }