* add generic calendar icon for caldav
* module for symmetric encrypt/decrypt
* caldav integration
* use Radix dialog
* Move caldav components to /caldav
* remove duplicate cancel button, unused function
* ensure app can connect to caldav server before adding
* fix calendar clients can possibly return null
* fix: add caldav dialog does not close when submitted
* safely attempt all caldav operations
* clarify variable name, fix typo
* use common helper for stripping html
* remove usage of request lib until "completed"
* add types and usage comments to crypto lib
* add encryption key to example env file
- Introduced useTelemetry() hook
- Telemetry events are sent for page_view, booking_confirmed, time_selected, date_selected events
- Telemetry is configured (and can be disabled) with NEXT_PUBLIC_TELEMETRY_KEY env variable
* Added MS_GRAPH_CLIENT_* credentials to .env.example.
* Refactored the google integration into an abstraction layer for creating events and getting the user schedule from either Google or Office 365.
* FIX: when re-authorizing the Google Integration the refresh_token would no longer be set and the google integration would stop working.
* Updated Office 365 integration image
