fix: don't use mbstring
feat: sort graphs on the statistics page by usage
feat: lifetime subscriptions
feat: allow multiple filters on the settings page
feat: filter by notification status
fix: migrations using double quotes
feat: rework icons
fix: open 3 dot menu abone for the subscriptions at the bottom
fix: ntfy notifications with strange chars
feat: move update banner to the dashboard
fix: handle some ai responses that come in a different format
chore: handle deprecation of curl_close
feat: enable ai recommendations at a schedule
feat: add robots.txt to disallow indexing.
feat: add serverchan notifications.
fix: use stable UID for iCal events to prevent duplicates.
fix: use RFC 5545 compliant date format in iCal exports.
feat: notifications for subscription can be triggered up to 180 days before payment date.
fix: accept both api_key and apiKey as parameter on the api
feat: allow to disable password login when oidc is enabled
feat: add get_oidc_settings endpoint to the api
feat: refactor css colors
feat: ai recommendations with chatgpt, gemini or ollama
feat: display ai recommendations on the dashboard
