* Add generic webhook integration
* Send webhook events when new entries are detected
* Send wehbook events when saving an entry
* Sign the outgoing requests with HMAC-SHA256
* Improve Telegram integration
* Add built-in Telegram client
* Remove dependency on `go-telegram-bot-api` library
* Add new options:
* Optional topic ID
* Disable page preview
* Disable notifications
* Add new button to go to article
* Improve Matrix integration
* Add built-in Matrix client
* Remove dependency on `gomatrix` library
* Send HTML formatted messages to Matrix
* OpenID Connect authentication improvements:
* Add OAuth2 PKCE support
* Add `profile` scope to OIDC integration to support accounts without email address
* Prevent empty username when using the OIDC integration
* Add `factor` for `entry_frequency` scheduler:
* Allow the user to increase the frequency of the `entry_frequency`
scheduler by a configurable factor in order to shorten the time between
updates.
* Fix: status bar is unreadable when using PWA in dark mode on Firefox Android
* Group form fields into fieldsets to improve page layout
* Update Russian translation
* Make sure icon URLs are always absolute
* Add Apprise service URLs per feed
* Trim `username` and `password` form fields
* Strip HTML tags from DublinCore Creator tags
* Fix scroll up behavior on Firefox Android
* Add missing `return` statement in `fetchContent` UI handler
* Add `replace_title` write rule to adjust entry titles
* Fix Pocket integration redirect URL and Google Reader API HREF
* Fix feed `hide_globally` property to use it with third-party clients.