feature: search from preselected path in buffer with gs

[matu3ba]

It would be nice, if you could offer or describe the stubs for realizing this.
Analogously, a way to store the search path into a user-defined buffer would be nice.

I dont think one can be faster than searching from a scratch buffer defined path for new filepaths not buffered yet.

Another approach is to search only buffered paths for the initial search, but that is more tailored to someone with 100s of files buffered in nested big monorepos. However, I think any advice on that use case would be helpful.