Closes#30Closes#31Closes#42
Rather than partially cloning, instead we clone once and then `clean` (to remove generated files), `reset` (to reset changed files), and `checkout` branches as needed. This should allow the outdated translation check to continue to work while also reducing build times significantly.
Before:

After:

Reviewed-on: https://gitea.com/gitea/gitea-docusaurus/pulls/52
Co-authored-by: John Olheiser <[email protected]>
Co-committed-by: John Olheiser <[email protected]>