Tag can contain other Tags

### What feature or improvement do you think would benefit Files?

I want to organize tags like several trees, eg, 'work' contains ‘project1’，‘project2’...
when I tag a file with a sub-tag, its father tag automatically be attached to the file.

### Requirements

- organize tags like trees

### Files Version

3.7.7.0

### Windows Version

win11

### Comments

_No response_