Fixed: Use relative paths instead of absolute paths for webmanifest

(cherry picked from commit 8e771f95ade919a8f1ed7b48675f032a6c508cb2)

frontend/src/Content/Images/Icons/manifest.json

@@ -1,18 +1,19 @@
 {
-    "name": "",
+    "name": "Readarr",
     "icons": [
         {
-            "src": "/Content/Images/Icons/android-chrome-192x192.png",
+            "src": "android-chrome-192x192.png",
             "sizes": "192x192",
             "type": "image/png"
         },
         {
-            "src": "/Content/Images/Icons/android-chrome-512x512.png",
+            "src": "android-chrome-512x512.png",
             "sizes": "512x512",
             "type": "image/png"
         }
     ],
+    "start_url": "../../../../",
     "theme_color": "#3a3f51",
     "background_color": "#3a3f51",
     "display": "standalone"
-}
+}