Add UI for Markers with end seconds on scene player.

[skier233]

End seconds to markers was added in #5311. However, the UI has not yet had a way to show markers that are timespans instead of single timestamps. This PR adds support to show markers that are a timerange/timespan. To be able to see multiple markers that would have overlapping time ranges, time ranges stack when needed. Tags used for primary tags of markers are each assigned a unique/consistent (when possible) color so that users can easily distinguish the different markers. Also existing behavior with tag name on hover popping up is maintained.

[WithoutPants]

Please include a proper description for this change.

[WithoutPants]

I am getting the following error when running with this change, after playing the video:

markers.ts:281 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'digest')
    at MarkersPlugin.computeBaseHue (markers.ts:281:44)
    at MarkersPlugin.findColors (markers.ts:263:34)
    at loadMarkers (ScenePlayer.tsx:718:23)
    at Player2.<anonymous> (ScenePlayer.tsx:745:12)

The crypto.subtle field is undefined.

[skier233]

I am getting the following error when running with this change, after playing the video:

markers.ts:281 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'digest')
    at MarkersPlugin.computeBaseHue (markers.ts:281:44)
    at MarkersPlugin.findColors (markers.ts:263:34)
    at loadMarkers (ScenePlayer.tsx:718:23)
    at Player2.<anonymous> (ScenePlayer.tsx:745:12)

The crypto.subtle field is undefined.

So this was originally using the Web Crypto API which worked in my testing. Though based on your error I did some research and it looks like in certain older browser that library may not exist. So, I swapped to using an explicitly defined crypto-js library instead for hashing here and tested on my end and it works as well.

[WithoutPants]

Thanks for this. I identified the following while testing:

• markers don't seem to be updated when changing the scene markers. While this is not a huge issue, it's guaranteed to be raised as a bug if we don't address it.
• I think you might need a minimum width on the marker range indicator. I would probably use the same width as marker points on the video scrubber.

[skier233]

Thanks for this. I identified the following while testing:

• markers don't seem to be updated when changing the scene markers. While this is not a huge issue, it's guaranteed to be raised as a bug if we don't address it.
• I think you might need a minimum width on the marker range indicator. I would probably use the same width as marker points on the video scrubber.

Fixed these two