feat: command locales

[Skelmis]

This is simply an issue used to track localization progress over time in a centralized location.

[Skelmis]

All locales should have a json file in the directory suggestions/locales. The file naming scheme should follow <locale>.json where locale is found here

All translations should include the same keys as en_GB.json, with the values being the relevant translations.

[Skelmis]

Formatting for command entries is as follows:

{
    "<COMMAND>_NAME": "The name of the command",
    "<COMMAND>_DESCRIPTION": "The description of the command",
    "<COMMAND>_ARG_<ARGUMENT>_NAME": "The name of this argument",
    "<COMMAND>_ARG_<ARGUMENT>_DESCRIPTION": "The description of this argument"
}

N.B. Keys should be all caps.

[Skelmis]

If you are unable to complete a translation, rather then remove the key please just leave the en_GB translation as the value.

[Skelmis]

We will also require manually localizing all strings sent within commands and error handlers.

[Skelmis]

(Linked the PR to the wrong issue)

[Skelmis]

Format for localizing embeds:

{
    "<CMD>_INNER_<VARIABLE>_EMBED_<FIELD>": ""
}