fix(newos4): mode layout constraints, capture() arg split, suppress classic welcome modal

- #ui-root is a flex column (it was display:block, so every mode's flex:1 was inert and the
  terminal collapsed to 0px while the composer sat at the bottom of a 4600px flow)
- overflow:clip on #ui-root and body: overflow:hidden is still a scroll container, and the
  terminal's scrollIntoView() on new output scrolled the mode's own chrome off-screen
- terminal min-height 100px: in the tabbed/panel modes its grid parent is not a flex parent
- api.capture() split arguments itself; term._parseArgs does not exist, so every panel showed
  'unavailable: term._parseArgs is not a function'
- the classic Let's Get Started modal is suppressed in non-classic modes: it covered easy's cards

0 files changed, 0 insertions, 0 deletions