The "Multiplayer Widgets" package is displayed as an option for the installation even though it is already installed

Steps to reproduce:

1. Create a project
2. Go to Window -> Multiplayer -> Multiplayer Center
3. Verify that the mentioned window opens
4. Select "Fighting" in the "Genre of your Game" dropdown
5. Select "4" in the "Number of Players per Session"
6. In the Recommendation" tab, verify that 4 packages are selected and the "Install Packages" button is active
7. Unselect all selected packages
8. Verify that the "Install packages" button becomes disabled
9. In the "Other Packages" section, check the "Multiplayer Widgets" package
10. Observe the button
11. Go to the Package Manager and check if the "Multiplayer Widgets" package is installed or not

Actual results:

• The "Multiplayer Widgets" package is displayed in the list as active, which can be installed
• The button "Install Packages" is displayed as inactive even if one package from the list is selected for the installation

Expected results: 

• The "Multiplayer Widgets" package should be displayed as inactive, as it is already installed.  User shouldn't be able to do mentioned selection.
• The button "Install Packages" should stay as inactive.

Reproducible with versions: 1.0.0 (6000.0.48f1, 6000.1.4f1, 6000.2.0b2)

Not reproducible with versions: -

Can’t test with versions: -

Tested on (OS): M1 Max - Sequoia 15.5