Publish JSON format

[m-aciek]

Potentially enables external uses of the data generated for the dashboard.

Ground for having a separate generation cycle with quality checks (#45 (comment)).

Sample JSON response:

[
  {
    "language": {
      "code": "pt-br",
      "name": "Portuguese"
    },
    "repository": "python/python-docs-pt-br",
    "branch": "3.13",
    "completion": 58.28396485229216,
    "translators": {
      "number": 155,
      "link": false
    },
    "visitors": 455709,
    "built": true,
    "in_switcher": true,
    "uses_platform": true,
    "contribution_link": "https://explore.transifex.com/python-doc/python-newest/"
  },
  {
    "language": {
      "code": "pl",
      "name": "Polish"
    },
    "repository": "python/python-docs-pl",
    "branch": "3.13",
    "completion": 9.45489244960439,
    "translators": {
      "number": 26,
      "link": false
    },
    "visitors": 41505,
    "built": true,
    "in_switcher": true,
    "uses_platform": true,
    "contribution_link": "https://explore.transifex.com/python-doc/python-newest/"
  }
]

---

📚 Documentation preview 📚: https://pydocs-translation-dashboard--54.org.readthedocs.build/

[StanFromIreland]

Looks good, lets get this merged!

Small suggestion but maybe also add a link to this at the bottom of the dashboard?

"Download a json copy of this data here"

[willingc]

Looks good. Thanks @m-aciek.

[StanFromIreland]

This has conflicts now due to 4254bbe

Resolved

[m-aciek]

Small suggestion but maybe also add a link to this at the bottom of the dashboard?

"Download a json copy of this data here"

I'll add it in a follow-up PR.