- Add new log channel "flare" and update "stack" channel to use it
- Introduce placeholders for log messages in several channels
- Add processors to "papertrail" and "stderr" channels
- Add `spatie/laravel-ignition` package to composer requirements
- Change `$dontReport` variable to `$dontFlash` in exception handler
- Add `FLARE_KEY` and `BRIDGY_MASTODON_TOKEN` to `.env.github` and `.env.example` files