NoXPlayer 3.31.10

Fixes the cross-tab selector leak — third time's the charm

Confirmed the previous two attempts weren't enough: just scrolling down the groups column in Movies (no tap needed at all), then switching to TV Shows, still left the selector partway down instead of at the top. The real cause was Flutter reusing each row's underlying focus state positionally across tabs, since nothing distinguished "row 15 in Movies" from "row 15 in TV Shows." Both groups columns now force a genuinely fresh rebuild on every tab switch.

Same real signing key — updates in place with no data loss.