Update default file exclusions

[thecrypticace]

IntelliSense, by default, ignores files for:

• Version control (.git, .hg, .svn)
• NPM (node_modules)

I'm adding three more groups to this:

• Python virtual environment folders (.venv, venv)
• Yarn v2+ metadata & caches (.yarn)
• some build caches (.next, .turbo, .parcel-cache, __pycache__)

Discovered that we should update these when triaging #1312 (that one was specifically about python virtual envs)

[RobinMalfait]

Looks good!

To we want to somehow take the @source information into account in case you do want to enable intellisense in one of these folders?

I'm thinking of the Laravel folks that use vendor (we are not excluding vendor in this case so not an issue for them. Just thinking out loud here)

[thecrypticace]

To we want to somehow take the @source information into account in case you do want to enable intellisense in one of these folders?
I'm thinking of the Laravel folks that use vendor (we are not excluding vendor in this case so not an issue for them. Just thinking out loud here)

For now, I'm thinking not. This list shouldn't ever contain things like vendor, build, cache, etc… because those could be actual names for folders that aren't caches.

This not only affects whether or not files can show hovers/completions/diagnostics but also the discovery of CSS files in the first place.