Closes
https://linear.app/zed-industries/issue/Z-2707/make-inclusionexclusion-with-non-globs-more-intuitive

Allow search results that start with the include/exclude path part.

![image](https://github.com/zed-industries/zed/assets/2690773/ef48ca8e-f8fd-41b2-a656-c31dc7712a11)


Release Notes:

- Improved project search include/exclude filters' usability: allow path
entries along with the glob ones