Remove resizability and orientation restrictions to support large screen devices

[tobiaswu]

From Android 16, Android will ignore resizability and orientation restrictions for large screen devices, such as foldables and tablets. This may lead to layout and usability issues for our users.

I detected the following resizability and orientation restrictions:

<activity android:name="com.google.mlkit.vision.codescanner.internal.GmsBarcodeScanningDelegateActivity" android:screenOrientation="PORTRAIT" />
<activity android:name="com.a1lab.echos.MainActivity" android:screenOrientation="PORTRAIT" />

To improve the user experience, remove these restrictions and check that the app layouts work on various screen sizes and orientations by testing on Android 16 and below.