TAG_COLOR - Implementation Suggestion: TAG COLOR Search Functionality in Pantheon Files

### Problem

I have added color tags to several files and folders. I have tried to locate these files using the search bar and exploring the file manager, but I have not been able to find a way to search or filter files by these tags.

### Proposal

I would suggest implementing a search or filter functionality in Pantheon Files that allows users to locate files based on color tags. This would significantly improve organization and efficiency when managing large amounts of files. I have not been able to locate such a function. If it already exists, I would like it to be more visible. Adding a tag search functionality would allow for more efficient organization of files and improve the user experience when searching for specific documents and folders.

Similar to what MacOs uses.

### Prior Art (Optional)

_No response_