Correct APK filename in build script

The build script `BuildApp.py` has been updated to use the correct filename for the generated APK. The script previously looked for `app-{build_type}-release.apk`, but the correct filename uses an underscore, `app_{build_type}_release.apk`.

This change ensures that the build script can locate the APK file for subsequent steps.

Author: CreativeCodeCat

BuildApp.py

@@ -22,7 +22,7 @@ def run(cmd):
 run(f"gradlew assemble{build_type}Release --no-configuration-cache --refresh-dependencies")
 run(f"gradlew bundle{build_type}Release --no-configuration-cache --refresh-dependencies")
 
-apk_path = f"app/build/outputs/apk/{build_type}/release/app-{build_type}-release.apk".lower()
+apk_path = f"app/build/outputs/apk/{build_type}/release/app_{build_type}_release.apk".lower()
 bundle_path = f"app/build/outputs/bundle/{build_type}Release/app-{build_type}-release.aab".lower()
 
 if os.path.exists(apk_path):