Add initial iOS app configuration with LaunchScreen and Main storyboards, Info.plist, and Podfile

- Created LaunchScreen.storyboard for app launch interface with a splash image.
- Created Main.storyboard for the main app interface using CAPBridgeViewController.
- Added Info.plist with essential app metadata, including display name and storyboard references.
- Introduced Podfile to manage dependencies for Capacitor and Cordova integration.

frontend/capacitor.config.ts

@@ -0,0 +1,9 @@
+import type { CapacitorConfig } from '@capacitor/cli';
+
+const config: CapacitorConfig = {
+  appId: 'de.the1s.weather',
+  appName: 'My OWM App',
+  webDir: 'dist'
+};
+
+export default config;