NLS Expression/JSON editor and fix their height calculation

red/api/locales/en-US/editor.json

@@ -397,6 +397,10 @@
     },
     "expressionEditor": {
         "functions": "Functions",
-        "insert": "Insert"
+        "insert": "Insert",
+        "title": "JSONata Expression editor"
+    },
+    "jsonEditor": {
+        "title": "JSON editor"
     }
 }