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