Indeterminate progress indicator for downloads

[BlackYps]

Describe the bug
When downloading maps, mods or a new game version the progress indicator in the status bar at the bottom of the client is indeterminate. This is inconvenient because you get no feedback how much the download progressed and if it is making progress at all. Interestingly it works as desired when downloading the next client version from inside the client.

To Reproduce
Download a sufficiently large file so you can get a good look at the progress indicator

[Sheikah45]

The cloudflare CDN does not provide the Content-Length header to tell us how big the file is without downloading it, so have to figure out some other way to get the size of the files

[Sheikah45]

This works for the largest files of the patches as they are not behind the CDN. For the others that are smaller I think the indeterminate is best for now.