style(pds-tab): display not-allowed cursor for disabled tabs

[pixelflips]

Description

Display a not-allowed cursor when hovering over disabled tabs in pds-tab. Previously, the pointer-events: none CSS rule prevented the cursor from showing, even though cursor: not-allowed was already defined.

The fix removes pointer-events: none from the disabled state. The native HTML disabled attribute on the button element continues to prevent interaction, so this is a non-breaking change.

Fixes DSS-119

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• tested manually

Test Configuration:

• OS: macOS
• Browsers: Chrome

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• My changes generate no new warnings
• New and existing tests pass locally with my changes

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