ERD editor: Shift + LMB locks the tables position

Please note that security bugs or issues should be reported to security@pgadmin.org.

Describe the bug

In the ERD table, after I press Shift and drag LMB, I am not able to move tables, nor pan the view. Selection box appears instead, but it doesn't select anything.

To Reproduce

Steps to reproduce the behavior:

1. Go to ERD editor (web or app)
2. Press Shift and drag mouse pointer as to select something
3. Release everything and try to move a table or pan the view

Expected behavior

The tables and the view should still be movable.

Error message

No error, just cannot move anything except nodes.

Screenshots

Here I'm trying to pan the view with the middle mouse button:

Same happens with the LMB.

Desktop (please complete the following information):

• OS: Linux, Fedora
• pgAdmin version: 9.14
• Mode: Desktop
• Browser (if running in server mode): chrome, vivaldi
• Package type: rpm

Additional context

Start in the ERD editor by reproducing the Shift-drag sequence described in the issue and tracing the selection-box interaction. Done means releasing Shift and the mouse no longer prevents table movement or view panning, including with the middle and left mouse buttons.