The Bibites v0.4.1

So just a small update following the feedback I got from the last release!
Mostly some bugfixes and a little bit of balance of the default settings to make the world more interesting! 

Changes:

• Added verification for the random virgin bibite option that ensures basic viability
• Reworked and fixed the damage formula when attacking

Balance to default settings:

• Lowered the brain upkeep cost to promote brain size
• Lowered the pheromones production cost to promote usage
• Increased default mass of the bibites to slow down their movement a little 

Bugfixes:

• Fixed UI formatting in the menu for the material settings
• Disabled brain connections being invisible instead of transparent
• Fixed the energy cost of healing to prevent immortality 
• Fixed the bibites eyes being invisible before the first bibite is selected
• Fixed crash when trying to save a bibite to no path