- forgejo/forgejo#7187 removed the usage of `reference column` class names, however some javascript code depended on it. Adjust this code to instead use the new class `branch-tag-item`.
- Ref: forgejo/forgejo#7187
## Testing
- visit a compare tag page
- see it is possible search for a tag

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/7558
Reviewed-by: Beowulf <beowulf@beocode.eu>
Reviewed-by: Michael Kriese <michael.kriese@gmx.de>
Co-authored-by: Gusted <postmaster@gusted.xyz>
Co-committed-by: Gusted <postmaster@gusted.xyz>