feat: use highSignalNotificationFilter to api

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What does this PR do?

🤖 Generated by Copilot at cf7a12f

The pull request adds a new feature to let users filter notifications by signal strength in the web app. It updates the Settings.tsx component, the preferences worker, and the tracking.ts module to handle the new preference option highSignalNotificationFilter. It also improves the cache clearing logic for the preferences worker.

Related issues

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Enhancement (non-breaking small changes to existing functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Explanation of the changes

🤖 Generated by Copilot at cf7a12f

• Add a new feature to toggle the high signal notification filter, which is a preference that filters out low-quality notifications for users (link, link, link, link, link, link, link, link)
• Import additional modules and constants in Settings.tsx (link)
• Define a new function toggleHighSignalNotificationFilter in Settings.tsx that makes a POST request to the preferences worker, shows a toast message, and tracks the event using Leafwatch (link)
• Replace the inline function for setting the state of the filter with the new function in Settings.tsx (link)
• Add a new constant TOGGLE_HIGH_SIGNAL_NOTIFICATION_FILTER to the NOTIFICATION object in tracking.ts (link)
• Add a new optional property highSignalNotificationFilter to the ExtensionRequest type in updatePreferences.ts (link)
• Add a new validation rule for the highSignalNotificationFilter property in updatePreferences.ts (link)
• Destructure the highSignalNotificationFilter property from the request body in updatePreferences.ts (link)
• Add the highSignalNotificationFilter property to the update query for the preferences table in updatePreferences.ts (link)
• Optimize the cache clearing logic in the preferences worker to only clear the cache in Cloudflare KV if the update request was made by an admin (link)

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Name	Status	Preview	Updated (UTC)
prerender	✅ Ready (Inspect)	Visit Preview	Aug 20, 2023 2:13pm
web	✅ Ready (Inspect)	Visit Preview	Aug 20, 2023 2:13pm