Refactor data models and code to support internationlization and localisation

[abderrahmaneMustapha]

First, we need to refactor the data models so we can support multi-languages, and this is already done we discussed this in our slack channel, but you can share other ideas to get a better result, what we want to do is
to transform the articles, documentation, and learn models from :

{
  "title": "",
  "description": "",
  "image": "",
  "authors": [""]
}

to something like this

{
  "title": "english title",
  "description": "english descirption",
  "image": "image link",
  "authors": ["author of eng article"]
  ar : {     
    "title": "arabic title",
    "description": "arabic descirption",
    "image": "image link or we can use the default language",
    "authors": ["author of arabic article"...]  
  }
  ...... we can add more languages
}

Secondly, we want to refactor the data code because we were forced to translate some urls in the redux actions, for example
in [https://github.com/dzcode-io/dzcode.io/blob/main/web/src/apps/main/redux/actions/articles-page/index.ts](the article page redux actions) line 24 to 30.

 (item) => {
        ids.push(item.slug);
        return {
          content: item.title,
          id: item.slug,
          link: "/Articles/" + item.slug,
        }; 

We need to translate "/Articles/" in order to add support for multi-language URLs, we don't want to control the URLs from redux actions.