Remove jQuery from the repo commit functions (#29230)

Remove jQuery from the repo commit functions (#29230)

- Switched to plain JavaScript
- Tested the commit ellipsis button functionality and it works as before
- Tested the commits statuses tippy functionality and it works as before
- Tested the last commit loader functionality and it works as before

# Demo using JavaScript without jQuery

![action](https://github.com/go-gitea/gitea/assets/20454870/465516f8-0ff3-438c-a17e-26cbab82750b)

![action](https://github.com/go-gitea/gitea/assets/20454870/968da210-9382-4b50-a4c2-09419dc86e07)

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Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: silverwind <me@silverwind.io>