Add: add icons to contextmenu elements

components/MapComponent.js

@@ -289,16 +289,28 @@ const MapComponent = ({ locations, onLocationUpdate }) => {
         zoomControl: false,
         contextmenu: true,
         contextmenuItems: [
-          { text: "Station hinzufügen", callback: addStationCallback },
+          {
+            text: "Station hinzufügen",
+            icon: "img/add_station.png",
+            callback: addStationCallback,
+          },
           {
             text: "Koordinaten",
-            icon: "img/screen_same.png",
+            icon: "img/not_listed_location.png",
             callback: showCoordinates,
           },
           "-", // Divider
-          { text: "Reinzoomen", callback: zoomIn },
-          { text: "Rauszoomen", callback: zoomOut },
-          { text: "Hier zentrieren", callback: centerHere },
+          { text: "Reinzoomen", icon: "img/zoom_in.png", callback: zoomIn },
+          {
+            text: "Rauszoomen",
+            icon: "img/zoom_out.png",
+            callback: zoomOut,
+          },
+          {
+            text: "Hier zentrieren",
+            icon: "img/center_focus.png",
+            callback: centerHere,
+          },
         ],
       });