Move toolbar integration tests to toolbar module, part 2

Problem/Motivation

Move tests of Toolbar from other modules to the toolbar module.

$ git grep -lwi "'toolbar'" | grep -v core/modules/toolbar/ | grep -v core/modules/editor | grep -v core/modules/jsonapi | grep -v core/modules/shortcut | grep -v core/modules/ckeditor5 | grep -v core/assets | grep -v phpstan-baseline | grep -v MAINTAINERS | grep Test.php | nl

Steps to reproduce

Proposed resolution

1. core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php
2. core/modules/contextual/tests/src/FunctionalJavascript/EditModeTest.php
3. core/modules/responsive_image/tests/src/Unit/ResponsiveImageStyleConfigEntityUnitTest.php
4. core/modules/system/tests/src/Functional/Theme/ToolbarClaroOverridesTest.php
5. core/modules/workspaces/tests/src/Functional/WorkspaceSwitcherTest.php
6. core/modules/workspaces/tests/src/Functional/WorkspaceTest.php
7. core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryAuthenticatedPerformanceTest.php. - Toolbar was replaced with Navigation in #3560118: In Umami, replace Toolbar with Navigation, so removal install of Navigation as well.
8. core/themes/default_admin/tests/src/Functional/AdminTest.php - a simple removal and should have been done in #3611749: Remove toolbar from tests where it is not needed

Remaining tasks

Verify that each of the tests is using the toolbar module and change as needed to not use the Toolbar module.

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet