Fix ESLint errors

Let me work on it.

Still, many eslint errors needs to be fixed.

I have resolved all the errors and warnings identified by the GIT CI. After fixing them, I executed the GIT CI pipeline, and now all the reported errors have been successfully addressed.

Thanks everyone for working on this.

Here is the patch of the MR, in case anyone want to test it via a patch.

https://git.drupalcode.org/project/fullcalendar_block/-/merge_requests/1...

Hi @Mingsong,
I have reviewed and tested the changes, and everything looks okay. I applied the patch to the local project, and all ESLint errors have been addressed.
Moving to RTBC !
Thank you.

Thanks for the work done guys! I've pushed some additional fixes dropping some legacy browser support now that the code is now using ES6, as well as some other code cleanup.

Also included a bugfix for when Drupal.detachBehaviors() is called against the fullcalendar block.

Feel free to test and squash merge as necessary @Mingsong!

Thanks you all.

Automatically closed - issue fixed for 2 weeks with no activity.