Add splitter in canvas mode, Full width layout, always visible scrollbar, and Middle-click New Chat & History
I built this script because the fixed layout in Gemini's Canvas mode was too restrictive for my workflow
What it does:
Hide preview my stuff
Adds a splitter between the chat and the code panel.
It forces the layout to go Full Width (no more wasted side margins) and makes scrollbars always visible (because I personally dislike auto-hiding scrollbars).
You can middle-click "New Chat", chat in history to open it in a new background tab.
