0.1.2a_neoforge_1.21.1

• added mod icon
• added new colors, changed existing ones - now there are 14 colors
• now when drawing a new zone over existing one, it doesn't merge with it and creates a new zone instead (if there's no active zone)
• added helpful tips screen
• now gui texture atlas is 64x64px instead of 256x256px
• a little bit of unused code cleanup

0.1.0a_neoforge_1.21.1

Almost everything works locally, need to implement a couple of features and fixes (for example, fix some weird behaviour of zones selection and drawing, make it so that a player could draw only on explored chunks (not sure about this one))