Get wikipedia extract based on device language

[lydavid]

ex. https://musicbrainz.org/artist/6825ace2-3563-4ac5-8d85-c7bf1334bd2c

related: #239

[lydavid]

https://www.wikidata.org/w/api.php?action=wbgetentities&formatversion=2&ids=Q109358519&props=sitelinks%2Furls&format=json

{
  "entities": {
    "Q109358519": {
      "type": "item",
      "id": "Q109358519",
      "sitelinks": {
        "jawiki": {
          "site": "jawiki",
          "title": "月詠み",
          "badges": [],
          "url": "https://ja.wikipedia.org/wiki/%E6%9C%88%E8%A9%A0%E3%81%BF"
        },
        "viwiki": {
          "site": "viwiki",
          "title": "Tsukuyomi (ban nhạc)",
          "badges": [],
          "url": "https://vi.wikipedia.org/wiki/Tsukuyomi_(ban_nh%E1%BA%A1c)"
        }
      }
    }
  },
  "success": 1
}

[lydavid]

• need to store artist's area in database and join artist and area: https://musicbrainz.org/doc/MusicBrainz_Database/Schema

[lydavid]

How do I link between a country code and a language code?