build: migrate from cordova to capacitor

Closes #85

capacitor.config.ts

@@ -0,0 +1,23 @@
+import {CapacitorConfig} from '@capacitor/cli';
+
+const config: CapacitorConfig = {
+  appId: 'de.any_school.app',
+  appName: 'StApps',
+  webDir: 'www',
+  bundledWebRuntime: false,
+  cordova: {
+    preferences: {
+      AndroidXEnabled: 'true',
+      ScrollEnabled: 'false',
+      'android-minSdkVersion': '22',
+      BackupWebStorage: 'none',
+      SplashMaintainAspectRatio: 'true',
+      FadeSplashScreenDuration: '300',
+      SplashShowOnlyFirstTime: 'false',
+      SplashScreen: 'screen',
+      SplashScreenDelay: '3000'
+    }
+  }
+};
+
+export default config;