0.12.0

0.12.0

The post-it wall is experimental, and off. It is finished on a desktop and
not on a tablet or a phone, and a feature that works properly on one of the
three is something to opt into rather than something to meet. Settings has an
Experimental section now, and the wall is the first thing in it.

Turned off, a list is rows whatever its frontmatter says — view: postit is
ignored rather than rewritten, so nothing on disk changes and turning the wall
back on gives every list the layout it had. The layout control and the "post-it
for new lists" menu item are absent while it is off rather than present and
inert, and "New lists start as" moves into the same section as the thing it
chooses between.

The ribbon icon opens the picker again. getLeavesOfType walks the main
area before either sidebar, so with a list open as a tab the first leaf it
returned was that tab: the icon focused it and the sidebar stayed shut. The
startup check read the same answer as "the picker is already open", so a vault
with tabs open and no picker never got one back. Both now ask which container a
leaf is in rather than whether one exists anywhere.