Tooltip over commit counts for different branches

[ajmeese7]

Feature Description

Similarly to how GitLab handles commit counts on different branches:

I think Gitea should do the same, like so:

This only requires adding the title attribute with the appropriate text, the styles are handled by existing Gitea CSS. I'm willing to take a stab at implementing this since it seems pretty simple, if the team/community is open to it.

Screenshots

No response

[silverwind]

Would use data-tooltip-content instead of title here. Looks better and we use title attribute only for very unimportant stuff.