- Switched to plain JavaScript
- Tested the create/rename branch modals' functionality and they work as
before
# Demo using JavaScript without jQuery

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Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Giteabot <teabot@gitea.io>
(cherry picked from commit 4efe7884a3c99235b39998472ea430bffe0799e5)