fix(VRating): make icons tab-accessible

[rkrasnan]

Description

Set tabindex to 0 so we can tab to the button and press enter.
resolves #10820

Motivation and Context

This makes the buttons generated by v-rating accessible.
fixes #10820

How Has This Been Tested?

Tested visually. Ran with NVDA, can tab to the buttons and aria-labels are read.

Markup:

// Paste your FULL Playground.vue here

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Improvement/refactoring (non-breaking change that doesn't add any features but makes things better)

Checklist:

• The PR title is no longer than 64 characters.
• The PR is submitted to the correct branch (master for bug fixes and documentation updates, dev for new features and backwards compatible changes and next for non-backwards compatible changes).
• My code follows the code style of this project.
• I've added relevant changes to the documentation (applies to new features and breaking changes in core library)

[rkrasnan]

Please let me know if there is something more that needs to be done!

[KaelWD]

Thanks. Not sure how that was missed for so long, even in #12345

[rkrasnan]

Happy to help! I removed the tabindex completely. Let me know if anything else is needed. Thanks!

[rkrasnan]

It works for me in the vercel preview!

[rkrasnan]

hey hey @KaelWD, anything else needed from me (other then patience)? I'd love to get this fix into my website.