Prevent text selection of map

frontend/src/map/leaflet-map/leaflet-map.scss

@@ -16,6 +16,8 @@
         left: 0;
         bottom: 0;
         z-index: 0;
+        user-select: none;
+        -webkit-user-select: none;
 
         .fm-leaflet-center {
             left: 50%;
@@ -105,6 +107,8 @@
         left: -25px;
         pointer-events: none;
         overflow: hidden;
+        user-select: none;
+        -webkit-user-select: none;
 
         img {
             margin-bottom: -24px;