Update available tile zoom levels

public/fordecyt_2019/js/grijalva_functions.js

@@ -535,11 +535,10 @@ const mapboxLayer = (monthYear) => {
             type: "vector",
             tiles: [`${baseUrl}/${monthYear}/mvt/{z}/{x}/{y}?geom_column=geom&columns=${indicators.join()}`],
             maxzoom: 19,
-            minzoom: 7
+            minzoom: 6
         },
         "source-layer": monthYear,
         type: "fill",
-        minzoom: 5,
         "paint": {
             "fill-opacity": 0,
             /*"fill-color": [