[FEATURE] -

Title:
Add the ability to favourite CSS snippets

Description:
There’s currently no way for users to save or favourite CSS snippets/styles they like.

Expected Behaviour:
Users can click a heart/star on a CSS snippet to save it. Favourite items appear in a Favourites list (or on the user profile).

Suggested Fix:
Add a favourite icon on snippets, a backend endpoint to toggle favourites, and a Favourites view (or section in the profile) to list saved items.

Request:
I’d like to implement this — @Gyanthakur please assign it to me.