Add max length to worldname input

[robkuijper]

Made a constant to manage this attribute so it is easy to change
if the current max is deemed too short in the future.

Summary

Bugfixes "Disallow long worldnames that throw off UI display"

Purpose of change

Worldnames can be absurdly long, this should be capped to circumvent issues with displaying and saving worlds.
Fixes #55148

Describe the solution

Put a hard cap on the max amount of characters that can be fit into a worldname by checking the length of the current name against a constant.

Describe alternatives you've considered

An alternative would be to make this cap only prompt the player with a warning when the worldname is being verified, instead of disallowing additional input.

Testing

Try to create a new world and fil up the name to the max. You should not be able to input more characters once you reach the defined limit.

Additional context