Update

[Dramorian]

Generated conventional commit message

feat(background.js): add background fetch functionality

- Add constants for PREVIEW_IMAGE_BASE_URL, NOTIFICATION_ICON_URL, BADGE_COLOR, BACKGROUND_FETCH_ALARM_NAME, and FETCH_INTERVAL_MINUTES
- Add getPreviewUrl function to generate preview image URL
- Refactor createNotification function to use try/catch and handle errors
- Add updateKnownStreamers function to remove offline streamers from knownOnlineStreamers object
- Add notifyNewStreamers function to send notifications for new online streamers
- Refactor fetchStreamerStatus function to use updateKnownStreamers and notifyNewStreamers
- Add hydrateStreamData function to hydrate stream data with usernames that may not be live
- Add updateBadgeAndTitle function to update extension's badge text and title
- Add backgroundFetch function to fetch streamer status in the background
- Add onAlarm listener to trigger backgroundFetch on alarm

[Friss]

Thanks I'll try and take a look at this this week