* before and after buffer added to handleAvailableSlots function
* --WIP
* added migration
* pull buffer data from DB
* cleanup
* added buffer input in form
* removed unused functions in controller field
* improved the buffer time check
* fixed default value and added preceding event afterbuffer consideration
* fixed e2e test issue
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
Syed Ali Shahbaz