Small quality of life update -- 0.157.0

I implemented next wave of fixes and small improvements to quality of life. Most notable change is that everything should by chain by default now -- from tower building, to upgrade selling. Also you can now sell mobs.

🚀 Features

• Mob selling
• Piggybank and Bear mobs can be disabled/enabled by clicking on their buttons

🔧 Tweaks

• New range sprite
• Use range sprite as interim explosion sprite to reduce visual clutter
• Chain sell/build by default
• Store run targets in repo
• Right click cancels current action

🐛 Bug Fixes

• BYTES are 512, not 256
• Ultimate Form works again (ignores unreleased prestige upgrades)