If anything is unclear or I misunderstood something, just ask!

>
> This addresses some of the feedback received last time:
>
> - renamed the package to eglot-inactive-regions so it's not limited to
>   clangd support only
>
> - added experimental support for ccls skippedRegions, so the rename
>   actually makes sense
>
> - turned it into a global minor mode (thanks Gerd!). Now once the mode
>   is active globally it gets automatically enabled in an eglot managed
>   buffer when an inactive region notification arrives from the LSP
>   server
>
> - moved all the user options to defcustoms
>
> I hope this rename won't cause too much disruption to my users.
> I think all the changes are for the best but let me know if I broke
> anything in the process.
>
> As always, feedback is very welcome!
>
> Cheers,
> Filippo