Obsidian caps note content at --file-line-width (~700px) with readable
line length on, which squeezed the two-pane grid into a column. Widen
only the sizer that contains a dashboard via :has(), so every other note
keeps its readable width, and cap the dashboard itself at 1600px.
Also swap the collapse breakpoint to a container query. A media query
measures the window, so a wide window with the dashboard in a narrow
split pane kept two cramped columns; the container query responds to the
pane. The media query stays as a floor for a narrow window.
e92c93d6f3