Rewrite a lot of history. Purge the following files from branch diver…

…gence COMPLETELY:

- `desktop/build.gradle.kts`

- `android/assets/game.atlas`

- `android/assets/game.png`

- `docs/uniques.md`

- `gradle.properties`

`$ git filter-branch --force --tree-filter 'for f in desktop/build.gradle.kts android/assets/game.atlas android/assets/game.png docs/uniques.md gradle.properties; do git restore $f --source 48bc79c; done; echo "$(git log HEAD^..HEAD)"' upstream/master..HEAD`