Added windows 98 style progressbar, also make it work with major browsers

[Yokutto]

This PR adds the following:

• Windows 98 style progress bar (segmented)
• Fixed animation issues with chrome + edge (also for XP style!)

Known issues:

• box-shadow is too inconsistent for ::before as it doesn't work well with scale, it seems thats it adds weird transparent lines
• In firefox, z-index for the ::before (our shadow hacky thing), simply get ignored, and the animation overlaps it
• Animation gets faster the more width you add to the progress element

I think this is "good to go", but I would appreciate some help fixing these inconsistencies, but I think that's not possible with current CSS state, maybe in the future? Maybe change progress element for something else?