Editor: Support resource identifier edition

[Angi-Kinas]

Description

This PR introduces a new resource identifier input field. This field refers to the resource not the metadata.
Also the FormFieldSimpleComponent was simplified so it is able to emit values.

Additionally I adapted some styles to the DropdownSelectorComponent to make the fields look more similar.

Screenshots

Quality Assurance Checklist

• Commit history is devoid of any merge commits and readable to facilitate reviews
• If new logic ⚙️ is introduced: unit tests were added
• If new user stories 🤏 are introduced: E2E tests were added
• If new UI components 🕹️ are introduced: corresponding stories in Storybook were created
• If breaking changes 🪚 are introduced: add the breaking change label
• If bugs 🐞 are fixed: add the backport <release branch> label
• The documentation website 📚 has received the love it deserves

[Angi-Kinas]

Should I remove this test to avoid too many tests as this is a simple field?

[github-actions]

Affected libs: api-metadata-converter, api-repository, feature-catalog, feature-record, feature-router, feature-search, feature-map, feature-dataviz, feature-editor, feature-auth, ui-search, common-domain, common-fixtures, util-shared, ui-elements, feature-notifications, ui-catalog, ui-widgets, ui-inputs, ui-layout, ui-map, ui-dataviz,
Affected apps: metadata-editor, metadata-converter, datahub, demo, webcomponents, map-viewer, search, datafeeder, data-platform,

• 🚀 Build and deploy storybook and demo on GitHub Pages
• 📦 Build and push affected docker images

[github-actions]

📷 Screenshots are here!