Small mod that Increases the size limit of the vanilla structure blocks

As of version 1801.1.1 we now also expand the limit of the fill command!

Version 1.16.5-1.0.5 and below:

Increases the size limit of the structure block from 48x48x48 to 127x127x127  

Version 1.16.5-1.0.6 and above

Increases the size limit of the structure block from 48x48x48 to 256x256x256  
Added command to remove air blocks from structure files:
/structure clean <name> 
(if structure is saved as 123 then name would be 123 if saved as sunekaer:123 name would be "sunekaer:123")