fix(map): changed map overflow from scroll to auto (#428)

changed the map div from overflow scroll to overflow auto so that the
scroll bars do not show up when the map is large enough to not need them

Co-authored-by: Peter Kos <[email protected]>

Author: JeremyRudman

app/assets/stylesheets/manage.sass

@@ -55,7 +55,7 @@ $grey-med: #999
 
 #map
   text-align: center
-  overflow: scroll
+  overflow: auto
   width: 100%
 
 .dashboard-container-title