GtkToggleToolButton are much wider than vcl equivalents. Split the bottom
toolbar into two toolbars. Rearrange their contents so the layout of each level
visually match.
Notes:
Master documents have two modes, master content tree and the normal content
tree.
You can drag entries from the content tree into the document, drag mode drop
down controls whether its a link or a copy etc that's dropped in.
Documents can be dropped into the content and global trees.
If outline tracking isn't active, then when content changes the tree is cleared
and refilled, typically an effort is made to reselect the same entry that was
previously selected. Additionally, if the amount of content didn't change an
effort is made to scroll back to the location the scrollbar was at before the
clear.
Change-Id: I00c015145eac5b1acc3398d3c40861d830e4264a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89725
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
5a2c0ab297