Chrome takes the top of the panel before an app builds anything, and layout
has not run yet when it does, so ui.frame() reports what the mount left it.
Chrome and the app now share a tree, so a screen is no longer something an
app constructs and holds: ui.mount() takes the function that builds the
whole thing and ui.rebuild() runs it again. Building a node after layout
is refused rather than silently resetting the arena under the panel.
The Lua modules were split between tabs and spaces because nothing pinned a
style; .editorconfig is what lua-language-server reads on save, so the editor
and the tree now agree. clang-format already had a config and left native/
unchanged. Embedded modules regenerate from the reformatted ui.lua.
Two columns portrait and three landscape read better than 3/4 on a 320x480
panel. The new disabled palette role sits between face and muted, for a
control that is present but inactive.
evan