shelley: fix terminal panel padding and dark mode detection
Philip Zeyliger
and
Shelley
created
Add padding (8px/12px) to terminal content so text doesn't touch edges.
Fix dark mode detection to use .dark class on documentElement
(matching the rest of the app) instead of data-theme attribute.
Prompt: fix two things: give padding to the terminal since it goes right up against the edge, and make it respect dark mode/light mode settings
Co-authored-by: Shelley <shelley@exe.dev>