feature/gist 80 add paginate on gists

[Courtcircuits]

Reopening this PR, because when integrating the frontend I realized that we need to add a pagination to the gists. I will add this feature now.
As you can see it breaks the current API. So to have no downtime maybe we should add a v1/ API prefix.

new /gists return is like :

{
    "gists": [
        {
            "id": "1f12108e-7840-4485-96f4-c5e61f15aa20",
            "name": "Test3",
            "content": "teewqweqewq",
            "owner_id": "17ea63c3-17bc-4564-b108-32a20dec3bb7",
            "description": "",
            "language": "text",
            "visibility": "public"
        },
        {
            "id": "5d1cd247-9259-4803-823e-3612361d9f6b",
            "name": "Test",
            "content": "test",
            "owner_id": "17ea63c3-17bc-4564-b108-32a20dec3bb7",
            "description": "",
            "language": "text",
            "visibility": "public"
        },
        {
            "id": "9481dd14-869c-4628-b4bb-607b6f9d8235",
            "name": "Test2",
            "content": "testweq",
            "owner_id": "17ea63c3-17bc-4564-b108-32a20dec3bb7",
            "description": "",
            "language": "text",
            "visibility": "public"
        }
    ],
    "nb_pages": 0
}

• feat(GIST-80): add paginate on gists
• feat(GIST-80): added nb pages to gists

[linear]

GIST-80 Add paginate on /gists