Filter files by color tag

## Prerequisites
- [x] I have searched open and closed issues for duplicates.

## Feature
I'm currently working on multiple stuff on my laptop, some stuff is work, some it's personal and some other its just junk, I have selected a color tag for the files, but I was hopping to see a way to filter by color but right now there is no such option.

**Describe the solution you'd like**
On the side bar the color tags used by the user should appear, as an option to filter by tag.


**Existing work**
This i think it's possible to to on KDE dolphin and on MacOS

**Describe alternatives you've considered**
Another alternative would be to be able to add the used color tags on the search bar when clicked, not as intuitive but if the idea of the location bar is to be used as a search function is not a bad idea to put in there.