Custom Language Labels on Pin Repo

### Is your feature request related to a problem? Please describe.

Sometimes a repo's language label is incorrectly determined by Github. Like, one of my repo has more HTML files than Java, but really it was an android app developed in android studio. And the HTML files were references. I'd like to be able to override that.

In addition, for Javascript, sometimes I want it to specifically say Vue.js.

Or better yet, if it's possible to specify more than one. Some of my older repo has both frontend and backend as one and I'd like to properly label them in my profile readme.

### Describe the solution you'd like

Being able to specify (and override) language label in pin repo. If possible, specify multiple of them.

### Describe alternatives you've considered

I can put them in the repo description I guess

### Additional context

_No response_