Template messages in more than one language

[willemarcel]

I'm submitting a feature request

Brief Description

In my use of OSMCha I'm missing the possibility of having comment templates in more than one language. Implementation ideas: save the messages in a JsonField on the backend with all languages in just one field. for example: {"default": "default comment", "es": "comentário en español", "pt": "comentário em português"}. The frontend should allow to add/remove languages when saving and to load the right language based on the information available.

What is the motivation / use case for this feature?

Allow users to post comments in different languages in a more agile way.