Add colorful labels similar to the github issues labels

On the release notes section, some colorful labels could be added next to the build number for better clarity. For example:

2025XXXXXX (Stable)

2025022700 (Alpha-only) (Current) 

2025021100 (Stable)

If the user isn't on the latest release:

2025020500 (Stable) (Current) (Out-of-date)

[zikada]

I propose different labels:

1. Stable
2. Beta (hidden if also in stable channel)
3. Alpha (hidden if also in beta or stable channel)
4. Active (shows the currently running OS version, ignoring the non-booted A/B partition)

Users could intuitively see they're out-of-date if the active release isn't labeled stable anymore.

It can be more intuitive if labels on each release were displayed in Material You style like the way Alpha/Beta apps release channels are being display in App Store.

This can also be done for the website, "potentially" remove the need for the long device list in the middle of the Release page if we also have tags for devices too.