Add send email icon, add default icons series

assets/layers/bike_repair_station/bike_repair_station.json

@@ -94,9 +94,7 @@
       "render": "<a href='https://fietsambassade.gent.be/' target='_blank'><img src='./assets/themes/cyclofix/fietsambassade_gent_logo_small.svg'/></a>",
       "condition":  "operator=De Fietsambassade Gent"
     },
-    "wikipedialink",
-    "osmlink",
-    "sharelink"
+    "defaults"
   ],
   "tagRenderings": [
     "images",

assets/layers/bike_shop/bike_shop.json

@@ -195,10 +195,7 @@
       },
       "render": "<img src='./assets/layers/bike_shop/bike_cleaning.svg'/>"
     },
-    "phonelink",
-    "wikipedialink",
-    "osmlink",
-    "sharelink"
+    "defaults"
   ],
   "description": {
     "en": "A shop specifically selling bicycles or related items",