Allow to configure the attribution position

[thomasfrobieter]

Is your feature request related to a problem? Please describe.
Leaflet allows us to configure the attribution position: https://leafmap.org/maplibre/attribution_position/
This is currently not possible using umap?

Describe the solution you'd like
Add a select to choose from the possible positions.

Describe alternatives you've considered

Additional context
https://leafmap.org/maplibre/attribution_position/
https://maplibre.org/maplibre-gl-js/docs/examples/attribution-position/