- Removed all jQuery AJAX calls and replaced with our fetch wrapper
- Tested the repo tag edit form functionality and it works as before
# Demo using `fetch` instead of jQuery AJAX
![action](https://github.com/go-gitea/gitea/assets/20454870/11126bc4-1666-44ae-8644-a6351da43514)
---------
Signed-off-by: Yarden Shoham <git@yardenshoham.com>
(cherry picked from commit 2089b974c8bf670de5c6801fa48c229fd9291a7b)