Recover dead imgur links

[LokiLeiche]

When going through the natives, I found a lot of dead/expired imgur links which kinda sucks.

I went through every single imgur link in the entire natives list and took care of the dead ones.
Most of these I was able to recover by looking up the dead link in the Internet Archive, opening the first snapshot, copying the image, uploading it back to imgur and replacing the old link with the new and working one.
Of course imgur still isn't great and reliable for this job, but it's a hotfix for now. It at least isn't worse than before.
If you want this in a different way, like uploading everything to the fivem-docs repo, let me know and I can do that as well.

I also changed the formatting slightly on some natives to have the image always shown instead of just the link so it's easier to work with.

[technetium-cfx]

Hey, thank you. You're right that imgur is not the best place to reliable store images, but I'm happy to merge this as a hotfix until we have a better pipeline for images that are stored in the docs directly.

Left a few comments to change before merging :)