Make a serializer for `beamingHistory`

[slovnicki]

So it can be stored and restored.

https://discord.com/channels/815722893878099978/815724566437298227/940239793361662003; Something like: beamingHistory.toStringsHistory() and stringsHistory.toBeamingHistory()

final stringsHistory = beamingHistory.map(
  (beamLocation) => beamLocation.history.map(
    (historyElement) => historyElement.routeInformation.location!,
  ),
).toList();