Deleting a project causes multiple UI issues

[matthewelwell]

Describe the bug

After deleting a project, the user is returned to the list of projects. They are unable to create a new project, as the button is greyed out as 'Creating' and refreshing the page sends the UI into a constant state of re-rendering.

To Reproduce

Steps to reproduce the behavior:

1. Navigate to the Project Settings for a project that can be deleted
2. Click on 'Delete Project' and confirm
3. User should be redirected to the 'Projects' screen for an organisation
4. Notice that the deleted Project name is still displayed in the top left
5. Try to create a new project and notice that the confirmation button is greyed out and says 'Creating'
6. Refresh the page
7. Notice that the UI now enters a continuous state of re-rendering

Expected behavior

• I should be able to create a new project after deleting an existing on.
• Refreshing the page should not enter a state of continuous re-rendering
• (Ideally) the old project name would not be displayed in the left hand navigation

Screenshots

Screen.Recording.2023-08-30.at.11.44.01.mov

How are you running Flagsmith?

• Self Hosted with Docker
• Self Hosted with Kubernetes
• SaaS at flagsmith.com
• Some other way

Additional context