settings-UI: fix add profile accessibility

[vraja-pro]

Context

• Change focus after adding new profile to the new input.
• Add aria-label to the delete/Trash icon.

Summary

This PR can be summarized in the following changelog entry:

• Improves accessibility for the extra other profiles in the Settings' Site representation when Organization is selected.

Relevant technical choices:

Test instructions

Test instructions for the acceptance test before the PR gets merged

This PR can be acceptance tested by following these steps:

• Open YoastSEO->Settings->Site representation
• Select Organization in Organization/person
• Scroll down to Other profiles
• Click on Add another profile
• Check focus is on the new input field for the profile.
• Turn on screen reader and use tab to move to the Add another profile, click on it
• Use tab to reach the Trash icon to delete the profile. Check the description is clear: 'Remove Other profile...`

Relevant test scenarios

• Changes should be tested with the browser console open
• Changes should be tested on different posts/pages/taxonomies/custom post types/custom taxonomies
• Changes should be tested on different editors (Block/Classic/Elementor/other)
• Changes should be tested on different browsers
• Changes should be tested on multisite

Test instructions for QA when the code is in the RC

• QA should use the same steps as above.

QA can test this PR by following these steps:

Impact check

This PR affects the following parts of the plugin, which may require extra testing:

UI changes

• This PR changes the UI in the plugin. I have added the 'UI change' label to this PR.

Other environments

• This PR also affects Shopify. I have added a changelog entry starting with [shopify-seo], added test instructions for Shopify and attached the Shopify label to this PR.

Documentation

• I have written documentation for this change.

Quality assurance

• I have tested this code to the best of my abilities.
• During testing, I had activated all plugins Yoast SEO provides integrations for.
• I have added unit tests to verify the code works as intended.
• If any part of the code is behind a feature flag, my test instructions also cover cases where the feature flag is switched off.
• I have written this PR in accordance with my team's definition of done.

Innovation

• No innovation project is applicable for this PR.
• This PR falls under an innovation project. I have attached the innovation label and noted the work hours.

Fixes nother profile' feature#19541

[igorschoester]

CR 🏗️

[igorschoester]

CR && AC ✅