Long tag names break tag validation popup UI

Steps to reproduce:

1. Create  a project
2. Add a cube (or any other object) in the "Hierarchy" window
3. Go to the "Inspector" window
4. Find the "Tag" section
5. Expand the dropdown and select "Add Tag..."
6. Click "+"
7. Enter long tag name (example added in the "Comments" section)
8. Verify that the created tag becomes visible in the "Tags" list
9. Click "+" the same and enter the same tag name, and click "Save"
10. Verify that you should get a validation message for the same title, and the "Save" button should be displayed below.

Actual results: "Save" button is not visible

Expected results: "Save" button should be visible

Reproducible with versions: 6000.1.11f1, 6000.2.0b9, 6000.3.0a1

Not reproducible with versions: 6000.0.50f1 as this one new feature is not added.

Can’t test with versions: 

Tested on (OS): M1 Max - Sequoia 15.5