Fix a bug where some NaN values could leak into the JSON output, causing it to be invalid. Created a new safe_json_dumps method since we would otherwise now be providing multiple parameters all over the code

templates/add_spot.html

@@ -76,7 +76,7 @@
 
 </div>
 
-<script src="/js/add-spot.js?v=1782461355"></script>
+<script src="/js/add-spot.js?v=1782666584"></script>
 <script>$(document).ready(function () {
     $("#nav-link-add-spot").addClass("active");
 }); <!-- highlight active page in nav --></script>