Ripgrep search provider incorrectly treats `search.exclude` globs as non-strict.

[JacksonKearl]

The include and exclude fields in the search view/search editor use a "loose" glob interpretation:
test -> **/test/**, **/test
.test -> **/*.test
etc.

search.exclude however uses strict globs. However, the ripgrep search provider seems to be interpreting the globs in search.exclude loosely:

For instance: Try searching "searchEditor" in vscode standard:

Now try adding "**/workbench": true to search.exclude. This should only remove results with basename workbench. In actuality, it filters out all of **/workbench/**:

[roblourens]

Oh, I see. From rg's perspective, it will not search inside workbench/ as it walks the folder tree because the workbench folder itself is excluded. I don't think we can even override this. vscode has always been this way and I wouldn't want to change it now.

[JacksonKearl]

Hm I see. cc @BurntSushi for visiblity, but will close out of scope for now.