On TV, pressing Up on the Logs screen put focus on the back button and no
direction key could move it again, so the upload/copy actions were out of
reach (edde746/plezy#2242). The SelectionArea added in 8fe7e4bcf installs
always-enabled caret-movement actions that Android's default text-editing
shortcuts map plain arrow keys to; the keys were consumed as no-op
selection moves and never reached DirectionalFocusIntent.
Override those two intents above the region with an action that is
disabled for the collapsing (unshifted) variants and defers to the
region's own handler otherwise, so Shift+Arrow selection keeps working.
edde746
a475e92d7e