add option to choose between formal and informal on deepl translations

[Dumdidum12]

HI there :), For vsce would be fantastic to add a option (provided by the Deepl API) to select that a text (e.g. german, france, spanish ...) could be translated formally or informally. I have this built in for me locally but I can't update Ally because my changes are gone after update.

The integration would be super simple:

1. deepl.ts -> class DeepL extends TranslateEngine -> translate: add to the data the paramenter formality with the values default (for normal translation) and prefer_less (for informally translation)

   class DeepL extends TranslateEngine {
   async translate(options: TranslateOptions) {
   try {
     const res: DeepLTranslateRes = await deepl({
       method: 'POST',
       url: '/translate',
       data: {
         text: options.text,
         source_lang: stripeLocaleCode(options.from || undefined),
         target_lang: stripeLocaleCode(options.to),
         formality: Config.deeplUseInFormalTranslation ? 'prefer_less' : 'default'
       },
     }).then(({ data }) => data)
   
     return this.transform(res.translations, options)
   }
   catch (err) {
     log(false, err)
   
     throw err
   }
   }

2. add a option to the config.ts like

   static get deeplUseFreeApiEntry() {
   return this.getConfig<boolean>('translate.deepl.useFreeApiEntry')
   }

   for example:

   static get deeplUseInFormalTranslation () {
   return this.getConfig<boolean>('translate.deepl.deeplUseInFormalTranslation ')
   }

3. Add a description to the locales json

That would be really great if this feature could be included.

[came]

How did you build it in locally? It is super annoying to change German Sie to Du again and again. So, yes, please make this configurable as well 😄

[Dumdidum12]

I did'nt build it locally. I've just changed the code in the windows extension folder. user->.vscode->extensions Is not a big thing :)