Live activity displays current BPM in addition to session length

Within the widgets on lock screen show the BBM the metronome is currently set to when using the pulse. Showing it along with the number of minutes you've been practicing for that session and current BPM would be helpful

We already have a live activity widget that shows the current session length - although it requires a newer Apple device. We could consider adding BPM to that live activity as well in case the metronoome is actively running!