fix(user-helper): throw error if no EiC is found

packages/component-helper-service/src/services/User.js

@@ -45,7 +45,12 @@ class User {
     const { UserModel } = this
     const users = await UserModel.all()
 
-    return users.filter(user => user.editorInChief)
+    const eics = users.filter(user => user.editorInChief)
+    if (eics.length === 0) {
+      throw new Error('No Editor in Chief has been found')
+    }
+
+    return eics
   }
 
   async updateUserTeams({ userId, teamId }) {