The manifest named app.concat.editor.ConcatActivity, but cargo-apk ships
no classes.dex: build.rs only compiles Java into the in-memory dex the
native code loads after startup. Android could not find the activity
class and the app closed immediately. Back to android.app.NativeActivity.

Bump version to 1.0.2.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>