Fixes the light column that appeared on the left of the page when the
shopping assistant was hidden while Amazon had it docked to the left.
It showed most clearly with the search suggestions open, where the
dimmed backdrop stopped short of the left edge.

With the assistant hidden, the extension now clears Amazon's docked
panel layout entirely, so the page uses Amazon's normal layout. This
also removes the empty space that the docked-right layout kept
reserved on the right edge.

No new permissions. No changes to settings, schedules, or the cart
rules.

Fixed CSS rule that kept extra padding on some amazon layouts for the empty space ask alexa used to display.