[Feature] Add feature to remove "custom" Model

[madebyaris]

Problem

I wanted to make it clear after testing some of the compatible API

Just imagine if I have testing like 10-20 model, it will be so bloated.

Solution

Add a command to remove the model (except the default model of Kolosal AI), You can add something like this:

/model on selection add functioanlity when we press delete it will delete the 'custom Model'

also add search feature like on the help /

[madebyaris]

#18 check my pull request