4198 Remove pubspec.yaml examples from READMEs (cla: yes, waiting for tree to go green, p: file_selector, p: google_sign_in, p: image_picker, p: in_app_purchase, p: path_provider, p: url_launcher, p: video_player, p: shared_preferences, platform-ios, platform-android, platform-windows, platform-macos, platform-linux, platform-web)

p: webview_flutter - 27 pull request(s)

3266 [webview_flutter] Fix broken keyboard issue link (cla: yes, waiting for tree to go green, p: webview_flutter)