Implement pagination for rankings overlay

[SailorSnoW]

Closes #31036.

Fully functional but may need to polish the way we implement this because I'm not sure adding the pagination in the Header is the way we want this, waiting for some reviews.
I've tried to visually replicate the website implementation, apart that we only show one page selector (on top) instead of two (bottom and top) as I think having both is kinda useless and we should just choose if we put it on top or bottom of the table.

About the available pages, as we can't fetch the potential total that the API would fetch, we put it to 200 available pages (like in the web version).

This PR also change the way the TestRankingsOverlay is loaded for tests Set-up to better start from a clean instance on each test.

CleanShot.2024-12-19.at.01.45.35.mp4

[peppy]

I'd probably match web and have the pagination at the top and bottom, if it's not too much trouble.

[SailorSnoW]

I don’t think it would cause too much trouble, I just don’t really have an idea at the moment on how to place the second PageSelector below the Table, especially if using the Header for the first one. Is there already a way implemented in OnlineOverlay to easily position elements at the bottom/under the main Content? I don't remember seeing something like that actually or I miss something.