[LoyalAbbas]

Summary

Removes the temporary client-side status bar inset and system-bar hiding workarounds introduced while waiting for native WindowInsets support in the Maps 3D SDK (tracked in https://issuetracker.google.com/issues/575850758), and fixes initial placement of the Quick Settings button on UiControlsActivity.

What Changed

• Removed manual status bar inset workaround (Map3DSettings.applyStatusBarInsetsToMapView):
  • Deleted manual child-container margin traversal, layout change listeners, dedicated tag IDs (ids.xml), and the temporary workaround test suite (Map3DStatusBarInsetsTest.kt).
  • Replaced manual offset calls with standard ViewCompat.requestApplyInsets(...) dispatch in SampleBaseActivity (Kotlin & Java), UiControlsActivity (Kotlin, Java, Compose), Map3DQuickSettingsButton, Map3DQuickSettingsWidget, and maps3d-compose (GoogleMap3D).
  • Returned unconsumed WindowInsetsCompat from SampleBaseActivity's inset listener so sibling Map3DView instances receive system bar and display cutout insets natively.
• Restored visible system bars on edge-to-edge screens:
  • Updated sample activities and Utilities.enableImmersiveMode() to keep system bars visible (insetsController.show(WindowInsetsCompat.Type.systemBars())) under standard edge-to-edge rendering.
• Fixed initial Quick Settings FAB placement on UiControlsActivity:
  • Added uiControlsOverride support to Map3DQuickSettingsButton (matching Map3DQuickSettingsWidget in Compose) so asynchronous window-inset passes and attachMap() refreshes preserve screen-level UI control overrides.
  • Initialized updateTopMarginForUiControls(buildCurrentUiControls()) during onCreate in both Kotlin and Java UiControlsActivity so the Quick Settings FAB clears the active trailing controls from the first frame.

Verification

• Verified ./gradlew spotlessCheck passes across all modules.
• Built and verified :Maps3DSamples:ApiDemos:kotlin-app:assembleDebug, :Maps3DSamples:ApiDemos:java-app:assembleDebug, :Maps3DSamples:ComposeDemos:app:assembleDebug, and :Maps3DSamples:ApiDemos:common:testDebugUnitTest.
• Verified on-device across Kotlin Views, Java Views, and Jetpack Compose samples that built-in 3D map UI controls, the Google Maps logo, and the Quick Settings button clear system bars and avoid overlap on initial load.