
Upgrades agp versions and lockfiles for `dev/`. Also changes the lockfile generation script to represent the newer form of the `settings.gradle` template, and therefore also propagates these changes. ~~Potentially related to https://github.com/flutter/flutter/issues/134419~~, but worth doing anyways. (not actually related)
Flutter gallery
An older copy of the Flutter gallery demo application used for integration testing.
For the current Flutter Gallery app sample, see this repo: https://github.com/flutter/gallery
Icon
Android launcher icons were generated using Android Asset Studio: https://romannurik.github.io/AndroidAssetStudio/icons-launcher.html#foreground.type=image&foreground.space.trim=1&foreground.space.pad=0.1&foreColor=607d8b%2C0&crop=0&backgroundShape=square&backColor=fafafa%2C100&effects=none