add click event on map

src/add_plant.eml.html

@@ -1,7 +1,10 @@
 let f nick request =
 <%s  Format.sprintf "Add a plant to your Collection %s !" nick %>
       <div class="mb-3">
+<div id="map"></div>
         <%s! Dream.form_tag ~action:"/add_plant" ~enctype:`Multipart_form_data request %>
+        <input type="hidden" id="lat_lng" name="lat_lng" value="THIS IS NOT WORKING">
+
         <label for="tags" class="form-label">Tags</label>
         <textarea name="tags" type="text" class="form-control" id="tags" aria-describedby="tagsHelp"></textarea>
         <div id="tagsHelp" class="form-text">Describe your plant with tags</div>