Rework Inclinity Problem special round and fix an error related to it

[KimmyTF2]

It's not a team-based special round, but it affects players differently. Only Team Battles makes sense to be based on points, so here are some changes:

• All players' screens are now tilted at the same rate, rather than being based on points.
• Now it can randomly pick to either tilt players' screens to the left or right for the duration of the round.
• Fixed rare cases where the tilt effect was lost if players' first-person view was overwritten and then returned back to first-person during the same minigame/boss stage (for example, in Beep Block Skyway after teleporting between stages).
• Fixed this error.