Steps to reproduce:

1. Create a 2D Project
2. Create a Sprite Library Asset and open in in the Sprite Library Editor
3. Create a Category
4. In the Labels section right click and Create a new Label
5. Create a second Label and confirm its naming
6. Make sure you are viewing the Sprite Library Editor in Grid View
7. Holding CTRL or other modifier for multiple selection click the first and the second Labels

Actual results: Whilst holding CTRL selecting multiple Labels doesn't work, either one or the other is selected

Expected results: Whilst holding CTRL the user is able to select multiple labels and use the "Delete selected Labels" (Multiple) correctly

Reproducible with versions: 6000.0.5f1, 6000.0.9f1

Not reproducible with versions: 2021.3.40f1, 2022.3.36f1, 2023.1.20f1, 2023.2.20f1, 6000.0.4f1

Tested on (OS): Windows 11