Nits reported during testing

[torokati44]

Copied from the output of: https://github.com/ruffle-rs/ruffle-android/actions/runs/9446976692/job/26017990211?pr=172#step:8:153

/home/runner/work/ruffle-android/ruffle-android/app/src/androidTest/AndroidManifest.xml:6:5-74 Warning:
	uses-sdk:minSdkVersion value (18) specified in the manifest file is ignored. It is overridden by the value declared in the DSL or the variant API, or 1 if not declared/present. Current value is (26).
/home/runner/work/ruffle-android/ruffle-android/app/src/androidTest/AndroidManifest.xml:6:5-74 Warning:
	uses-sdk:targetSdkVersion value (28) specified in the manifest file is ignored. It is overridden by the value declared in the DSL or the variant API, or 1 if not declared/present. Current value is (34).
/home/runner/work/ruffle-android/ruffle-android/app/src/androidTest/AndroidManifest.xml:11:5-68 Warning:
	application@tools:label was tagged at AndroidManifest.xml:11 to replace other declarations but no other declaration present
/home/runner/work/ruffle-android/ruffle-android/app/build/intermediates/tmp/manifest/androidTest/debug/tempFile2ProcessTestManifest14665732751251244503.xml:19:5-23:19 Warning:
	application@tools:label was tagged at tempFile2ProcessTestManifest14665732751251244503.xml:19 to replace other declarations but no other declaration present

file:///home/runner/work/ruffle-android/ruffle-android/app/src/main/java/rs/ruffle/PlayerActivity.kt:159:36 '@Deprecated(...) static fun generateViewId(): Int' is deprecated. Deprecated in Java.