BlogGen Connector v1.1.23 — Private Connector Mode

- Hides BlogGen Connector from the normal WordPress Tools menu by default after setup.
- Keeps the page accessible only to administrators via the direct connector URL for reconnection and diagnostics.
- Moves the one-time connection code/token to a clearer top-of-page connection box.
- Keeps stored connector tokens hashed; existing tokens are not displayed again.
- Adds a Private mode setting so an administrator can temporarily show the menu item again if required.
