Add intenationalization to Frontend

[ggfto]

Implementation of internationalization to the Frontend

• New languages can be added with a corresponding JSON;
• The JSON name will be the same as the .lua files for language;
• Kept English as primary.

[MonkeyWhisper]

Thanks for the review, I need to test this, quit a lot of changes here

[ggfto]

deleted the branch by mistake

[lenzh]

code seems solid, only thing is add a en locale file as default

[ggfto]

code seems solid, only thing is add a en locale file as default

even with the english within the i18n.ts file we need a en locale for reference?

[ggfto]

@lenzh I've added the en.json

[lionc213]

@ggfto can you fix conflicts ?

[ggfto]

@danichim Conflicts solved!