Add nominatim search to maputnik (#873)

This replaces PR:
- #785

Before:

![image](https://github.com/maplibre/maputnik/assets/3269297/95297211-4108-43d8-8a43-42f87e2fbe16)
After:

![image](https://github.com/maplibre/maputnik/assets/3269297/86c3ae58-1bb7-4d2c-8ad9-6b84a21c96f7)

This is based on the geocoder example in maplibre docs:
https://maplibre.org/maplibre-gl-js/docs/examples/geocoder/

cypress/e2e/maputnik-driver.ts

@@ -177,5 +177,6 @@ export class MaputnikDriver {
     skipTargetLayerEditor: () =>
       this.helper.get.elementByTestId("skip-target-layer-editor"),
     canvas: () => this.helper.get.element("canvas"),
+    searchControl: () => this.helper.get.element('.maplibregl-ctrl-geocoder')
   };
 }