Browse-related heading changes (#42779)

docs/embedding/interactive-embedding-quick-start-guide.md

docs/exploration-and-organization/data-model-reference.md

docs/exploration-and-organization/exploration.md

docs/permissions/data-sandbox-examples.md

docs/permissions/data.md

docs/troubleshooting-guide/cant-see-tables.md

e2e/support/helpers/e2e-ui-elements-helpers.js

...narios/admin/databases/default-sample-database.cy.spec.js

...test/scenarios/embedding/interactive-embedding.cy.spec.js

e2e/test/scenarios/onboarding/auth/signin.cy.spec.js

e2e/test/scenarios/onboarding/home/browse.cy.spec.js

...ctions/18978-18977-nested-question-nodata-user.cy.spec.js

e2e/test/scenarios/question/settings.cy.spec.js

frontend/src/metabase/browse/components/BrowseModels.tsx

...tabase/nav/containers/MainNavbar/MainNavbar.unit.spec.tsx

...tainers/MainNavbar/MainNavbarContainer/MainNavbarView.tsx

.../metabase/palette/hooks/useCommandPaletteBasicActions.tsx