feat: force portrait screen orientation

Author: thunderbiscuit

app/src/main/AndroidManifest.xml

@@ -14,6 +14,7 @@
         <activity
             android:name="org.bitcoindevkit.devkitwallet.presentation.DevkitWalletActivity"
             android:theme="@style/SplashScreen"
+            android:screenOrientation="portrait"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />