Fix favicons

Paths were wrong in the manifest

res/manifest.json

@@ -6,37 +6,37 @@
     "start_url": "index.html",
     "icons": [
         {
-            "src": "vector-icons/android-chrome-36x36.png",
+            "src": "android-chrome-36x36.png",
             "sizes": "36x36",
             "type": "image\/png",
             "density": "0.75"
         },
         {
-            "src": "vector-icons/android-chrome-48x48.png",
+            "src": "android-chrome-48x48.png",
             "sizes": "48x48",
             "type": "image\/png",
             "density": "1.0"
         },
         {
-            "src": "vector-icons/android-chrome-72x72.png",
+            "src": "android-chrome-72x72.png",
             "sizes": "72x72",
             "type": "image\/png",
             "density": "1.5"
         },
         {
-            "src": "vector-icons/android-chrome-96x96.png",
+            "src": "/android-chrome-96x96.png",
             "sizes": "96x96",
             "type": "image\/png",
             "density": "2.0"
         },
         {
-            "src": "vector-icons/android-chrome-144x144.png",
+            "src": "android-chrome-144x144.png",
             "sizes": "144x144",
             "type": "image\/png",
             "density": "3.0"
         },
         {
-            "src": "vector-icons/android-chrome-192x192.png",
+            "src": "android-chrome-192x192.png",
             "sizes": "192x192",
             "type": "image\/png",
             "density": "4.0"