Renaming functionality for Labels is available to users when multiple Labels are selected

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 and a third Label
6. Select all of these Labels and right click them and choose the option "Rename"

Actual results: First or last selected Label is renamed

Expected results: When multiple Labels are selected the user shouldn't have the option to rename them, as is with Categories on the left. Users also shouldn't have the option to Rename Labels when no Labels are selected

Reproducible with versions: 2022.3.36f1, 2023.1.20f1, 2023.2.20f1, 6000.0.9f1

Can't test with: 2021.3.40f1 (No Sprite Library Editor)

Tested on (OS): Windows 11

Notes:

1. On the latest trunk, selecting multiple Labels is blocked by [Internal link]
2. Users also have the ability to Rename something via right click when no Labels are selected at all