3849 Remove fallback Activity and watch uiMode (cla: yes, p: webview_flutter, platform-android)

3850 [google_maps_flutter] Unpin iOS GoogleMaps pod dependency version (cla: yes, p: google_maps_flutter, platform-ios, last mile)

3851 [in_app_purchase] Implement registerPlatform method for iOS implementation (cla: yes, p: in_app_purchase, platform-ios)

3852 [in_app_purchase] Add InAppPurchaseException to platform interface (cla: yes, p: in_app_purchase)

3853 Enable analysis for the tool directory (cla: yes)