Fix platform flash on download page

[ZirixCZ]

It is arguably prettier for the platform info to show up with a nice transition than changing from one to another. We could theoretically make a not-loaded state that would be sent from the server so there is not an empty space there until it loads, then transition nicely to the actual platform nicely. What is the opinion of you all on this?

2023-12-15.23-53-51.mp4

[ZirixCZ]

The problem with showing an empty container is that each of the platforms have different height - if we were to make it an empty container we would have to make it clear that it is loading and then transition to the actual size. I'll try to cook up something nice.

[Vendicated]

sorry i don't really understand what this is achieving? the original looks way better to me than yours

[ZirixCZ]

2023-12-16.01-44-33.mp4

This PR is fixing the platform flash that happens everytime you're not on windows. The part is causing trouble that we don't know the height that the windows platform will have on the server side (to make it the default one).

This kinda is the goal, but without hardcoding the height:

2023-12-16.01-48-20.mp4

[ZirixCZ]

2023-12-16.02-58-26.mp4

The commit at e233331 resolves the issue by saving the platform information in a cookie. This prevents the page from flashing. However, a user visiting the download page as their first page for the first time will still see an empty box until the page fully loads, which is unavoidable.

[Vendicated]

i don't think this is desirable. the current behaviour seems better to me, and it's not really a big deal

you also seem to be using cookies inside a prerendered route. that won't work