This change does not bring the desired benefit, because the button is
reinitialized from a Vue component once loaded, overriding this change
and causing a visual glitch upon page load (the button is moving its
position).
See the comment:
> this code must match the code in BranchTagSelector.vue
This button is also used in other places such as the release list where
the additional margin does not fit well. As such, this needs a new
solution.
This reverts commit 18cad9d342.
(cherry picked from commit 04e2e1510d)
fd8565c91a