New block: Race Hyperloop, Race Narrow

Added thumbnails for track editor road types

Fixes:

• Better bumpers makes the car more stable
• Track editor first block variant didn't saved
• Fixed showing mouse on gameplay
• Fixed and updated the chat system
• Fixed direction arrow
• Fixed too much skid sound
• Several small UI/UX changes: 
  • Fixed zoom in-out when load tracks window is visible
  • Fixed load track window position and size