[FEATURE] [WEB UI] folders and customizations to projects #15469

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

I am a big fan of web ui! I work in a monorepo and open opencode sessions inside a subdirectory. Thus even if I make a worktree I still want to use my team's subdirectory within opencode. Web ui treats those different in path projects as "same" because they share the directory name. E.g. I cannot set different colors to each of them. So my feature request is following: treat projects as different based on their full path (or better the real path, if some uses symlinks for directories), allow users to give them different colors. Also it would be helpful if we could organize projects into folders, at least for a depth of 1. Something like on the picture but more tasteful.