Operation Nova Beta V0.4.1.1 Patch

A quick post-launch update:

- Made it so the guards' view  radius is slightly less

- Guards' view now utilizes raytracing so that they can't see through walls

- Changed rain particle

- Start button loads faster

- Added PCF5 shadow filter to smoothen shadows

- Changed guard layout in levels 5 & 7

- Made guards not get stuck on corners

- Fixed a typo