Requested changes from PR review

[etoledom]

Closes GRA-193

Description

• This PR removes the email from the Quick Editor header when the token is given externally (not using internal OAuth flow).
• Changing the arrow icon from the View profile button to an external link icon.
• The Profile card maximum text size is .xxxl and it won't grow for accessibility sizes.
• We have removed the profile card for text sizes of .accessibility3 and more.
• On Avatar & About scope, the default height of the About editor is now intrinsic height.

Testing Steps

• Run the demo app
• Navigate to the Quick Editor demo screen
• Open the Quick Editor with the token field blank
  • Check that the email is visible
• Close the Quick Editor
• Add a valid token to the token field
• Open the Quick Editor
  • Check that the email is not visible
• Check that the View Profile button is displaying the new external link icon instead of the arrow.

[pinarol]

Looks good 🎉

[wpmobilebot]

📲 You can test the changes from this Pull Request in Gravatar Prototype Build by scanning the QR code below to install the corresponding build.

	App Name	Gravatar Prototype Build
	Build Number	2433
	Version	PR #782
	Bundle ID	com.automattic.gravatar-sdk-demo-uikit.prototype-build
	Commit	bc8e5e2
	Installation URL	3rr0jr2bprclg

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