4505 [shared_preferences] Federate mobile implementations (cla: yes, p: shared_preferences, platform-ios, platform-android)

4515 [url_launcher] Federate mobile implementations (cla: yes, p: url_launcher, platform-ios, platform-android)

4517 [in_app_purchase] Fix CHANGELOG for 0.2.0. (cla: yes, waiting for tree to go green, p: in_app_purchase, platform-ios)

4518 [in_app_purchase] Rename iOS implementation to _storekit (cla: yes, p: in_app_purchase, platform-ios)

4537 [webview_flutter] Adjust getTitle test (cla: yes, p: webview_flutter, platform-ios)

4539 [webview_flutter] Speculative getTitle fix (cla: yes, p: webview_flutter, platform-ios)