drop prerequisite tag, add some search terms

Author: tyrasd

data/fields/toilets/menstrual_products.json

@@ -9,8 +9,11 @@
         }
     },
     "label": "Free Menstrual Products Available",
-    "prerequisiteTag": {
-        "key": "toilets",
-        "valueNot": "no"
-    }
+    "terms": [
+        "feminine hygiene",
+        "pads",
+        "period",
+        "period products",
+        "tampons"
+    ]
 }