feat(pwa) update twa manifest with new (old) colors and manifest path

twa-manifest.json

   "name": "Jitsi Meet",
   "launcherName": "Jitsi Meet",
   "display": "standalone",
-  "themeColor": "#2A3A4B",
+  "themeColor": "#17A0DB",
   "navigationColor": "#000000",
   "navigationColorDark": "#000000",
   "navigationDividerColor": "#000000",
   "navigationDividerColorDark": "#000000",
-  "backgroundColor": "#2A3A4B",
+  "backgroundColor": "#17A0DB",
   "enableNotifications": false,
   "startUrl": "/",
-  "iconUrl": "https://alpha.jitsi.net/static/pwa/icons/icon512.png",
+  "iconUrl": "https://meet.jit.si/static/pwa/icons/icon512.png",
   "splashScreenFadeOutDuration": 300,
   "signingKey": {
-    "path": "./android/app/debug.keystore",
-    "alias": "android"
+    "path": "./jitsi-upload.keystore",
+    "alias": "upload"
   },
   "appVersionName": "1",
   "appVersionCode": 1,
   "shortcuts": [],
   "generatorApp": "bubblewrap-cli",
-  "webManifestUrl": "https://alpha.jitsi.net/static/pwa/manifest.json",
+  "webManifestUrl": "https://meet.jit.si/static/pwa/manifest.json",
   "fallbackType": "customtabs",
   "features": {},
   "enableSiteSettingsShortcut": true,
-  "isChromeOSOnly": false,
+  "isChromeOSOnly": true,
   "appVersion": "1"
 }