Feature: Vertical tabs

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

Been looking for a File explorer that has vertical tabs, much like Edge has for a while. I often end up with 20-30 tabs open and its very messy in current file explorers.


As far as i can tell there is no File explorer on the market that offers this at the moment for some reason, i can't be the only one with a lot of folders open in a day of working on multiple projects.

Pref. be able to group tabs, again like Edge but i feel just adding vertical tabs would improve quality of life a lot at this point.


### Requirements

- This proposal will accomplish X
- This proposal will accomplish Y
- This proposal will accomplish Z

### Files Version

3.9.1

### Windows Version

11

### Comments

_No response_