feat(locales): add .nl locales

[SjurdVrancken]

Describe Pull request
Added the translations in Dutch (NL) into the locales.

If your PR is to fix an issue mention that issue here

Questions (please complete the following information):

• Have you personally loaded this code into an updated qbcore project and checked all it's functionality? [yes] (Be honest)
• Does your code fit the style guidelines? [yes]
• Does your PR fit the contribution guidelines? [yes]

[nick-perry14]

Cannot verify the grammatical accuracy of these translations, but threw into google translate and they all generally translate.

That is to say: There's nothing egregious in these translations.

[GhzGarage]

It's missing the if condition for checking language value

[SjurdVrancken]

It's missing the if condition for checking language value

Fixed