[git] repo is getting bigger as we keep the history of all builds of the frontend in it

[alonh]

Currently, on every merge to the main, we compile the frontend using a GitHub action, and push the compiled version to label_sleuth/frontend.

We should:

1. Remove all the historic compiled versions
2. Look for a solution to prevent historic builds from being saved

[martinscooper]

1. We could use git filter-branch for this. However this will a) rewrite all the history and b) remove build files from tagged commits.
2. The simplest solution here is to do shallow clones with git clone --depth. Other solution, though more complex, would be to store build files somewhere else, like in another repository. The backend could somehow pull them automatically on start.

[martinscooper]

Interesting related article: https://www.atlassian.com/git/tutorials/big-repositories