Major update to the demo!

After watching a playthrough of the demo by the renowned Distortion2 I discovered some janky content in the demo.

The following has been addressed

• Adjusted text size in Spider level
• Shortened paths to avoid to much walking
• Made giant spider faster
• Fixed bug when player enters shed
• Lowered default sensitivity
• Made spider level brighter
• Adjusted buggy interactables
• Added missing collision to vehicles 
• Adjusted default volume