Fix Settings UI reactivity, resolve compiler warnings, update .gitignore

- Make screen capture permission and battery optimization states reactive
- Add lifecycle observer to refresh battery status on resume
- Add lifecycle-runtime-compose dependency for non-deprecated LocalLifecycleOwner
- Replace deprecated LocalLifecycleOwner import
- Remove unused REQUEST_CODE constant
- Use KTX createBitmap() and bitmap[x,y] extensions
- Add misc.xml and junie.xml to .gitignore

android/gradle/libs.versions.toml

@@ -39,6 +39,7 @@ kotlinx-serialization-json = { group = "org.jetbrains.kotlinx", name = "kotlinx-
 kotlinx-coroutines-android = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-android", version.ref = "kotlinxCoroutines" }
 datastore-preferences = { group = "androidx.datastore", name = "datastore-preferences", version.ref = "datastore" }
 lifecycle-service = { group = "androidx.lifecycle", name = "lifecycle-service", version.ref = "lifecycleService" }
+lifecycle-runtime-compose = { group = "androidx.lifecycle", name = "lifecycle-runtime-compose", version.ref = "lifecycleService" }
 navigation-compose = { group = "androidx.navigation", name = "navigation-compose", version.ref = "navigationCompose" }
 compose-icons-extended = { group = "androidx.compose.material", name = "material-icons-extended", version.ref = "composeIconsExtended" }