Firebase Stub refactoring

__mocks__/gatsby-plugin-firebase/constants/database.js

@@ -1,8 +1,23 @@
+const resumesPath = 'resumes';
+const usersPath = 'users';
+const connectedPath = '/.info/connected';
 const demoStateResume1Id = 'demo_1';
 const demoStateResume2Id = 'demo_2';
 const initialStateResumeId = 'initst';
 
 class Database {
+  static get resumesPath() {
+    return resumesPath;
+  }
+
+  static get usersPath() {
+    return usersPath;
+  }
+
+  static get connectedPath() {
+    return connectedPath;
+  }
+
   static get demoStateResume1Id() {
     return demoStateResume1Id;
   }