EditToolbar: Add to playlist button size

In the EditToolbar, the Add to playlist button should have a max width without having contentHorizontalAlignment set to .left.

This can lead to weird user experience on larger devices:

changed milestone to %3.2.0

added 1 deleted label

mentioned in issue #509 (closed)

it should just be leading instead of left

Perhaps it would be better to refactor the EditToolbar by putting the right actions into a separate UIStackView.

it might be enough to have a spacer item

It might, but wouldn't it be cleaner to have:

StackView/View/*:
  -> Button
  -> StackView
     -> Button
     -> Button
     -> Button

added Minor label

changed milestone to %3.2.1

changed milestone to %3.2.2

changed milestone to %3.2.3

assigned to @edrflt

closed via merge request !65 (merged)