feat(frontend): Vector base maps

Migrate from mapbox-gl to maplibre-gl.
Upgrade React Map GL to 7.1.
Replace DeckMap with BaseMap, and DeckGLOverlay for data layers.
Refactor map controls and map view state.
Roll back concurrent rendering, which seems to be causing a null ref error inside React Map GL when it instantiates mapbox (see https://github.com/visgl/react-map-gl/issues/1960.)
closes #6.

This is essentially https://github.com/nismod/irv-frontend/pull/28 ported across to this repo.

nismod / irv-jamaica