feat(admin,admin-ui,medusa): Add Medusa Admin plugin (#3334)

packages/admin-ui/ui/src/utils/convert-empty-string-to-null.js

@@ -0,0 +1,9 @@
+export const convertEmptyStringToNull = (data) => {
+  const obj = { ...data }
+  Object.keys(data).forEach((k) => {
+    if (obj[k] === "") {
+      obj[k] = null
+    }
+  })
+  return obj
+}