Made improvements related to the 'confirm to continue' setting.'

Improved how the setting behaves when used in combination with interpolate points. Previously, the player would only be paused upon 'exiting' a route point, so for interpolate points this would be when the next point is reached. Tour playback will now pause upon 'entry' of interpolate points which is more intuitive behaviour. The behaviour remains the same for stationary and orbit points.

Additionally, the interpolation playback speed is now eased out and back in when reaching a point that requires the player to confirm to continue. This means players will not stop abruptly at these points anymore.

Bugfixes:
- Fixed setting showing unexpected results when enabled.
- Fixed 'mouse' confirm mode not working.