Summary:
Fixes a regression (D21716761) in the layout of the accessibility inspector where the layout was accidentally switched from right to bottom.
Also made the region resizable while at it.
Changelog: Fix regression in the layout plugin where accessibility info was rendered in the wrong place
Reviewed By: cekkaewnumchai
Differential Revision: D21903760
fbshipit-source-id: 08623c17428e86ea77d8438e78766a308dbac1e6
db4c341eb3