Graph Access Control and Switching throw Errors for Admin and Read/Write Users

[Naseem77]

Title: Graph Access Control and Switching throw Errors for Admin and Read/Write Users

Scenario 1: Admin Creates a Graph and Read/Write User Attempts to Access It
Sign in as Admin.
Create a graph named "AdminGraph".
Sign out as Admin.
Sign in as Read/Write User.
Attempt to select "AdminGraph".
Verify that switching to "AdminGraph" throws an error.

Scenario 2: Read/Write User Creates Two Graphs and Attempts to Switch Between Them

Sign in as Read/Write User.
Create the first graph named "Graph 1".
Create the second graph named "Graph 2".
Attempt to switch from "Graph 1" to "Graph 2".
Verify that switching throws an error.
Attempt to switch back to "Graph 1".
Verify that switching throws an error.