Change remaining usages of Claro

Problem/Motivation

Change use of Claro in comments but not in tests.

$ git grep -ni claro | grep -v core/assets | grep -v .phpstan-baseline.php |  grep -v core/themes/claro | grep -v core/modules/toolbar | grep -v core/themes/olivoer | grep -v tests | grep -E "\s*(//|#|\*|{\s*#)"

But some can't be made until Admin is stable.

Steps to reproduce

Proposed resolution

1. core/lib/Drupal/Component/Plugin/DependentPluginInterface.php
2. core/lib/Drupal/Core/Field/FieldItemInterface.php
3. core/lib/Drupal/Core/Render/theme.api.php
4. core/modules/help/tests/src/Functional/HelpTopicTranslatedTestBase.php
5. core/tests/Drupal/FunctionalTests/Installer/StandardInstallerTest.php
6. core/tests/README.md

• core/recipes/core_recommended_admin_theme/recipe.yml - done in #3582101: Make Admin the default theme in profiles and recipes
• core/themes/default_admin/images/core/README.md - Do this as part of making Default Admin stable
• core/themes/olivero/templates/filter/filter-tips.html.twig - Can remain as Olivero is being deprecated

Make a separate issue to move the CSS per the comments in the file

• core/misc/dialog/off-canvas/css/form.pcss.css
• core/misc/dialog/off-canvas/css/throbber.pcss.css
• core/modules/workspaces_ui/css/workspaces.overview.pcss.css

Remaining tasks

Postponing on sibling issues, as that will make this easier.

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet