Changed knapping, short blunt, long blade and trapping skill icons.

Added better skill icons for strength and fitness

- Added icons for Lifestyle: Hobbies mod skills, Cleaning, Dancing, Meditation, Art and Music
- Added icons for Trait Purchase System mod trait points

- Added icons for several modded skills, efficiency, driving and scavenging
- Repositioned close button on tracked skills menu to the top so it doesn't overlap with any modded skills added to the list