Add translatable strings to bath:type field (#742)

Author: kjonosm

data/fields/bath/type.json

@@ -1,5 +1,14 @@
 {
     "key": "bath:type",
     "type": "combo",
-    "label": "Specialty"
+    "label": "Specialty",
+    "strings": {
+        "options": {
+            "hammam": "Hammam",
+            "hot_spring": "Hot Spring",
+            "lake": "Lake",
+            "onsen": "Onsen",
+            "thermal": "Thermal Bath"
+        }
+    }
 }