feature: add support for new Laravel 8 and above routing syntax

[coderste]

We keep the current autocomplete syntax in place for when a user uses quotes while adding autocomplete for the new routing syntax when a user starts the 2nd parameter with an opening [.

Also added auto-import of the selected controller. This will add the import after the last use value it can find. If none are located it will just add it after the opening of the <?php tag

Fixes https://github.com/amir9480/vscode-laravel-extra-intellisense/issues/56