Rename main to food.js
Re-enable all food types

Previously only a select few were enabled by default since the creative
inventory was getting crowded, but now that it is tabbed
https://github.com/deathcap/voxel-inventory-creative space is less of a
problem so just enable everything.
Add display names where needed
Fix typo in cake food amount

At least this led to finding deathcap/voxel-health@eaf76d90862cef7a8f6452befd5192bc91358290