* 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
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