more overlapping finetuning on map.

Author: gluap

content/map/map.html

@@ -110,6 +110,7 @@
                 ],
                 'text-offset': [0, 0.5],
                 'text-anchor': 'top',
+                'text-optional': true,
                 'text-allow-overlap': false,
                 'icon-allow-overlap': true
             }
@@ -128,7 +129,7 @@
                 'icon-size': [
                     'step',
                     ['get', 'point_count'],
-                    0.2,
+                    0.25,
                     3,
                     0.4,
                     5,