Search window still shows found results number when the text is already deleted from the search bar and no results are shown

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Open the Search window (Window > Search > New window)
3. Type "t" in the search bar
4. Press Backspace to delete the "t" character
5. Observe the Search window

Actual results: The found results number is still showing even when nothing is being searched and nothing is shown in the results

Expected results: The found results number is no longer showing

Reproducible with versions: 6000.1.0a9, 6000.1.12f1, 6000.2.0b9, 6000.3.0a1

Not reproducible with versions: 6000.0.54f1, 6000.1.0a8

Tested on (OS): Ubuntu 24.04, macOS Silicon Sequoia 15.5

Notes:

• Moving the mouse cursor makes the number disappear, which means the Search window does not update upon deleting the text in the search bar, but rather updates on other circumstances