Dragging certain dialogs (Find, Edit Function Properties) moves the entire Binary Ninja window instead of the dialog

Version and Platform (required):

• Binary Ninja Version: 6.1.10552
• Edition: Ultimate
• OS: Ubuntu Linux
• OS Version: 26.04 (also reproduced on 24.04)
• CPU Architecture: x64

Bug Description:
Dragging certain dialogs (for example, Find or Edit Function Properties) moves the entire Binary Ninja window instead of just the dialog being dragged.

This has been reproduced on both Ubuntu 26.04 and Ubuntu 24.04.

Steps To Reproduce:

1. Open a binary in Binary Ninja
2. Open the Find dialog (or the Edit Function Properties dialog)
3. Click and drag the dialog's title bar
4. Observe that the entire Binary Ninja window moves instead of just the dialog

Expected Behavior:
Dragging a dialog such as Find or Edit Function Properties should move only that dialog, not the entire Binary Ninja window.

Screenshots/Video Recording:

https://github.com/user-attachments/assets/40cb3fbf-7139-49a0-9aaf-062d1916d83b

No source files or tests are named. Reproduce the issue on Ubuntu with the Find or Edit Function Properties dialog, then locate the implementations of those dialogs and inspect their title-bar or window behavior. Done means dragging either dialog moves only that dialog while the main Binary Ninja window remains stationary.