[Feature request] Whitelist/blacklist file extensions or set to only PHP

[timyourivh]

When not in a composer project with pint the status indicator blinks with an error when navigating through files:

Error log after navigating files:

I wish I could disable the extension for certain file types or just non-php files altogether.

[d8vjork]

Good one! 👍 Open to PRs if urgent otherwise I'll leave it to after final v1 release

[d8vjork]

Now that I check this again, this could mostly be related to #43