* Commit new Schedule entity changes and new API endpoints.
* Fix possible cause of API POST errors.
* Fix syntax with JSON return slashes.
* Add "Schedule View" and "Enforce Schedule" settings to Streamers.
* Add "Scheduled" panel to Profile.
* Add form entries and LS config writing for live stream recording.
* Create new Broadcast entity; implement new djon/djoff handling.
* Rework record command procedure and add Station relation to Broadcast.
* Run code reformat on JS to add semicolons back.
* Properly save recording path on entity.
* Initial commit of new streamers Vue component.
* Finish frontend Vue dev and add necessary API endpoints.
* Add loader to Datatable; update npm deps; polish on components.
Implement an upgrade of the codebase to use Slim Framework version 4, which includes the following changes:
- Updating to Slim version 4 and the corresponding AzuraCore updates.
- Making all objects PSR-7 Request/Response agnostic (and creating RequestHelper and ResponseHelper objects to interact with the PSR-7 Req/Resp objects).
- Moving to PHP-DI as a DI container and implementing its autowiring support.