Fixed `links.prev` logic if first page number isn't zero

[sergey-litvinov-work]

Hi Jouke,

We found one missing case in initial pagination request. When we have FirstPage as 1, then we shouldn't generate links.prev if current page is 1. Like in example below prev link shouldn't be present as first page is 1

    "links": {
        "self": "https://localhost/WebService4/v5/internal/locations/marketplace?page[number]=1",
        "first": "https://localhost/WebService4/v5/internal/locations/marketplace?page[number]=1",
        "next": "https://localhost/WebService4/v5/internal/locations/marketplace?page[number]=2",
        "prev": "https://localhost/WebService4/v5/internal/locations/marketplace?page[number]=0",
        "last": "https://localhost/WebService4/v5/internal/locations/marketplace?page[number]=12"
    }

I added unit test to cover that scenario and sorry for initially missed case :)

Thanks!

[sergey-litvinov-work]

Thanks!