[block-library] Adds support for border-control to Quote Block

[Pathan-Amaankhan]

Tracks ticket: https://core.trac.wordpress.org/ticket/57506

What?

• This PR adds support for border-control to Quote Block.
• Due to this users can add custom borders to the quote blocks.

Why?

• As per the discussion done here, as we are not adding support for the wp-block-styles in TT3(twentytwenty-three) theme, we are missing border styles in our quote block.
• So, to resolve this we have decided to add border-control support in our Quote Block. (Please view comment-1 & comment-2 for more information)

How?

• We are adding border-control support to our quote block.
• This way the users will be free to set the border as per their requirements.

Testing Instructions

1. Open a Post or Page in Edit Mode.
2. Insert a Quote Block.
3. We will be having a Border option in Block Settings from where we can update the following border options:
   • color
   • radius
   • style
   • width

Screenshots or screencast

Before	After

Fixes / Closes Issue:

• Quote Block: styles are different between front end and editor #45547

[github-actions]

👋 Thanks for your first Pull Request and for helping build the future of Gutenberg and WordPress, @Pathan-Amaankhan! In case you missed it, we'd love to have you join us in our Slack community, where we hold regularly weekly meetings open to anyone to coordinate with each other.

If you want to learn more about WordPress development in general, check out the Core Handbook full of helpful information.

[Mamaduka]

Thanks for contributing, @Pathan-Amaankhan!

It looks like this enhancement was added via #63544.