Sidebar bug with closing and opening

S2R:

1. Minimize the sidebar (or start with the sidebar minimized).
2. Click the label icon.
3. Close the open dropdown.
4. Minimize the sidebar with the arrow on top.

ER:

Sidebar becomes minimized.

AR:

Sidebar does not minimize and the contents leak out the back.

cc @annabeldunstone @iamphill @alfredo1 @fatihacet

Also noticing the sidebar is not flush with the top of the page.

Reassigned to @fatihacet

mentioned in merge request !4117 (closed)

mentioned in commit aa2a7dad

mentioned in merge request !4292 (merged)

Status changed to closed by merge request !4292 (merged)

mentioned in commit f2caad24