Fix the bug with no points and fix 'off' for polylines legend
Fix the bug with no points and fix 'off' for polylines legend

ilyankou/leaflet-maps-with-google-sheets,kuzuha-fx/leaflet-maps-with-google-sheets,JackDougherty/leaflet-maps-with-google-sheets,EzequielRuibal/leaflet-maps-with-google-sheets,EzequielRuibal/leaflet-maps-with-google-sheets,JackDougherty/leaflet-maps-with-google-sheets,natarslan/leaflet-maps-with-google-sheets,jianleeg/leaflet-maps-with-google-sheets,chenlocker/leaflet-maps-with-google-sheets,ilyankou/leaflet-maps-with-google-sheets,kuzuha-fx/leaflet-maps-with-google-sheets,Rawrjay/Map-With-Google-Sheets,aperez773/Hartford-Climate-Stewardship-Council-Map,aperez773/Hartford-Climate-Stewardship-Council-Map,jianleeg/leaflet-maps-with-google-sheets,altophoto/leaflet-maps-with-google-sheets,altophoto/leaflet-maps-with-google-sheets,Rawrjay/Map-With-Google-Sheets,natarslan/leaflet-maps-with-google-sheets,chenlocker-archie/leaflet-maps-with-google-sheets,chenlocker/leaflet-maps-with-google-sheets,chenlocker-archie/leaflet-maps-with-google-sheets