hoverEvent messages "Invalid Entity!" and "Invalid Item!" are not translatable

The bug

The hoverEvent messages "Invalid Entity!" and "Invalid Item!", which are used when the value for the action show_entity respectively show_item is invalid, are not translatable.

How to reproduce

/tellraw @s {"text":"hover","hoverEvent":{"action":"show_entity","value":"{type:no quotation marks}"}}

/tellraw @s {"text":"hover","hoverEvent":{"action":"show_item","value":"{id:invalid}"}}