Migration of jsx files to tsx 3 (#851)

This is in continue to:
- #850
- #848

The last files should be converted as part of this PR, there are only a
handful left.

src/components/MapOpenLayers.tsx

@@ -8,7 +8,7 @@ import {apply} from 'ol-mapbox-style';
 import {Map, View, Overlay} from 'ol';
 
 import {toLonLat} from 'ol/proj';
-import { StyleSpecification } from '@maplibre/maplibre-gl-style-spec';
+import type {StyleSpecification} from 'maplibre-gl';
 
 
 function renderCoords (coords: string[]) {