[FEATURE] - Filtered branches

[lgranie]

Hi,

Thx for sourcegit, I love it \o/

Will it be nice to be able to :

• know / list / group all filtered branches ( maybe an entry like "LOCAL BRANCHES" or "REMOTES" )
• clear all the filters with one click

[love-linger]

I've pushed a simple implementation for this feature, which is similar to another well-known software - Fork.

You can try it from this build https://github.com/sourcegit-scm/sourcegit/actions/runs/9563415658