This makes the background for the "wave-theme-dark" theme transparent.
The light theme is still opaque because otherwise it will look somewhat
dark.
This also suppresses TypeScript/JavaScript import errors in the default
linter, since we don't have support for project directories.
This also reworks the useWidth and useHeight hooks to use the
useResizeObserver hook, which limits the number of ResizeObserver
instances floating around, thereby improving performance
Fixes an infinite loop in the layoutModel atom synchronization that
would cause the atom to update indefinitely when the root node is
deleted.
Also adds a dedicated `disabled` flag for the IconButton decl so we can
disable the onClick handler when the button is disabled.
Also updates the Magnify toggle button to use this new flag, so that
when there's only one leaf in a layout, the magnify button is disabed.
move codeedit to directory. new useLongClick hook. show quick navigation for directoryview on longclick of folder icon. lots more generic
stuff for header
new fitaddon for xtermjs
more fixes for xtermjs scrollbars
