Checklist:

- [ ] Updated `extVersionCode` value in `build.gradle` for individual extensions
- [ ] Updated `overrideVersionCode` or `baseVersionCode` as needed for all multisrc extensions
- [ ] Referenced all related issues in the PR body (e.g. "Closes #xyz")
- [ ] Added the `isNsfw = true` flag in `build.gradle` when appropriate
- [ ] Have not changed source names
- [ ] Have explicitly kept the `id` if a source's name or language were changed
- [ ] Have tested the modifications by compiling and running the extension through Android Studio
- [ ] Have removed `web_hi_res_512.png` when adding a new extension
- [ ] Have made sure all the icons are in png format
