[Feature]: Mark Watched Replays with Visual Indicators

[magge-faf]

Is your feature request related to a problem?

Losing track of which replays have already been watched.

Describe the solution you'd like

It would be a nice QOL improvement if watched replays were marked with an icon, different shade of color, watched-date/time or an outline to indicate they have already been viewed.

E.g.:

Describe alternatives you've considered

A simple checkmark-icon or watched-tag

[Brutus5000]

Should this be saved locally (per installation) or server side?

[magge-faf]

For easier and faster implementation, I suggest doing it locally for now. If the QOL feature gains more appeal, it can always be refactored to work with the server.