“Refresh Collections List” button makes drop down menu for collections inaccessible

[rfc2822]

Discussed in https://github.com/bitfireAT/davx5-ose/discussions/408

^{Originally posted by **dilyanpalauzov** September 16, 2023} The new white button for refreshing the list of collections can hide the vertical ellipsis, as shown below. Clicking on the vertical ellipsis is then very complicated. That white button shall appear at the bottom, on the same height as the orange Refresh button. 

[ArnyminerZ]

Doubling padding looks like this:

[ArnyminerZ]

Fixes the issue, but maybe too much padding...

[rfc2822]

Alone from the screenshot I think there should be even more padding, because it could be difficult to exactly tap on the ⋮ without hitting the FAB.