Add full JSDoc context and types to translation global

[Duddino]

Abstract

Adds jsdoc typings so the ALERTS and translation objects correctly have the string typing.

Testing

• Create a variable let test = translation.test
• Check that your lsp gives the string type to the test variable

[JSKitty]

Works well, although I think one way of vastly improving this, would be to somehow import all of the template/translation.js keys in some way that allows auto-completion of translation strings, since currently, using translations is extremely error-prone, there is no way to use them without back-and-forth checking translation.js.

i.e:
translation.change

Would auto-suggest/complete via IDE:
translation.changelogTitle

Otherwise though, this is a slight improvement and I'd be fine merging, but the above would be a huge productivity booster and error defense.

[JSKitty]

Done, that was easy, all translation keys (inherently strings) are in the scope now, I think this is a far superior improvement, shall I commit on top of this PR @Duddino?

[Duddino]

shall I commit on top of this PR @Duddino?
That's fine, you could also create a new PR, up to you

[JSKitty]

tACK 023ecad