Linked maps side by side

[leonard-psu]

Is your feature request related to a problem? Please describe.
Using side by side maps that are in sync. Map #1 uses a small geoparquet file, the other Map #2 uses a very large geoparquet file. When the user interacts with Map #1 I want to use the map bounding-box/view-extent to query the data to update Map #2.

Describe the solution you'd like
Public function to get the bounding box of the Map. i.e. map.getBounds()
Event state change to Map's bounding box.

Describe alternatives you've considered
Tested access to compute_view (private fn, i.e. wont work) to access bbox from pydeck.ViewPort.

Additional context
Add any other context or screenshots about the feature request here.

Hoping to be pointed in the right direction for a friendly way to get bbox.

[kylebarron]

There's an example in the docs for linked maps: https://developmentseed.org/lonboard/latest/examples/linked-maps/