[MC-131157] Structure block error messages are not red

The bug

Error messages shown in the chat when a structure block could not load or save a structure are not formatted red like it is the case for command error messages.

Situations	Translation key	Translation
Structure name is invalid	`structure_block.invalid_structure_name`	Invalid structure name '%s'
Structure could not be saved	`structure_block.save_failure`	Unable to save structure '%s'
Structure not available	`structure_block.load_not_found`	Structure '%s' is not available
"Detect" failed	`structure_block.size_failure`	Unable to detect structure size, add corners with matching structure names

How to reproduce

Try loading a structure with a name which does not exist
→ The error message in chat is not red