[Suggestion] Add git-branch-deleted and tag-deleted icons

[delvh]

Description

At the moment, there is no visual distinction between when a branch was created and when it is deleted again as both need to share the same icon, git-branch.
The same applies to tags/releases with the tag icon.
If there were a deletion icon for either, users would not need to skim through the text of a timeline entry to find out if this entry means that the branch/tag/release was added or deleted.
Furthermore, it could be used in a UI at the places that actually offer the deletion functionality, for example as a confirm action icon.

Regarding the design, my intuitive guess would be something like the existing icon with a × or something like that in the bottom right corner.

[tallys]

Thanks for opening the issue, I'll add this for discussion for the Octicons working group.

[github-actions]

Hi! This issue has been marked as stale because it has been open with no activity for 180 days. You can comment on the issue or remove the stale label to keep it open. If you do nothing, this issue will be closed in 7 days.

[delvh]

I guess this means it was discussed and then discarded?