Always show work package table pagination

Bug # 11935

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Always show work packages detail pane toolbar

* Rename internal details pane classes for consistency.

Bug # 13597

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Move details pane styles to correct Sass file

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Revert "[wip] Add simple, CSS3-based split view"

This solution has been superseded by solution based on CSS flexible
boxes (see 58219b1e).

This (partially) reverts commit 11d08be5c6d4d7b2695cffa3cb3c40755a6e476b.

Signed-off-by: Alex Coles <alex@alexbcoles.com>