PMM-14509: cleanup navigation code

[fabio-silva]

PMM-14509

[Copilot]

Pull request overview

This PR removes Percona-specific guided tour and several Percona navigation customizations, reverting parts of the UI back toward upstream Grafana behavior and simplifying bootstrap/navigation-related code.

Changes:

• Removed the Percona tour feature (Reactour dependency, provider, steps/messages/components, Redux state, and related styles/user flags).
• Simplified Percona bootstrapping and removed Percona navigation bootstrapping/custom menu rendering.
• Reverted/cleaned up core navigation UI customizations (mega menu item rendering, menu width, nav model extensions) and switched News drawer back to Grafana’s default feed/link.

Reviewed changes

Copilot reviewed 44 out of 45 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
yarn.lock	Removes @reactour/* and related dependencies from the lockfile.
package.json	Drops @reactour/tour dependency.
public/sass/components/_pmm_tour.scss	Removes tour-specific styling.
public/sass/_grafana.scss	Stops importing the removed tour Sass.
public/app/percona/tour/**	Deletes tour provider, components, and tour step definitions/messages.
public/app/percona/shared/services/user/User.types.ts	Removes tour completion fields from user details payload types.
public/app/percona/shared/services/user/User.service.ts	Removes API helpers that set tour completion flags.
public/app/percona/shared/core/selectors.ts	Removes the getTour selector.
public/app/percona/shared/core/reducers/user/user.utils.ts	Stops mapping tour completion flags into the user model.
public/app/percona/shared/core/reducers/user/user.types.ts	Removes tour completion flags from UserDetails.
public/app/percona/shared/core/reducers/user/user.ts	Removes tour-related thunks/state; fixes setSnoozedVersion thunk type string.
public/app/percona/shared/core/reducers/tour/**	Deletes tour reducer/types/index exports.
public/app/percona/shared/core/reducers/index.ts	Removes tour reducer wiring; import cleanup/reordering.
public/app/percona/shared/core/hooks/tour.ts	Deletes the custom tour hook.
public/app/percona/shared/components/PerconaBootstrapper/PerconaTour/**	Deletes tour bootstrapper.
public/app/percona/shared/components/PerconaBootstrapper/PerconaNavigation/**	Removes Percona navigation bootstrapping implementation; keeps constants export only.
public/app/percona/shared/components/PerconaBootstrapper/PerconaNavigation/PerconaNavigation.constants.ts	Removes Percona-only nav item props like showDot/showChildren.
public/app/percona/shared/components/PerconaBootstrapper/PerconaBootstrapper.tsx	Removes tour modal/bootstrapper and Percona navigation rendering; keeps updates modal gating.
public/app/percona/shared/components/PerconaBootstrapper/PerconaBootstrapper.messages.ts	Removes unused tour-modal strings.
public/app/core/components/AppChrome/News/NewsDrawer.tsx	Switches to Grafana blog link and default RSS feed constant.
public/app/core/components/AppChrome/MegaMenu/MegaMenuItemText.tsx	Stops using Percona variable-preserving URL helper; uses raw url for navigation/pinning.
public/app/core/components/AppChrome/MegaMenu/MegaMenuItem.tsx	Removes Percona dot/icon tweaks and aria-label wrapper used by tours.
public/app/core/components/AppChrome/MegaMenu/MegaMenu.tsx	Restores default menu width.
public/app/core/components/AppChrome/AppChromeMenu.tsx	Removes tour-based dismissal restrictions.
public/app/AppWrapper.tsx	Removes Percona tour provider wrapper.
packages/grafana-data/src/types/navModel.ts	Removes Percona-only extensions from NavModelItem.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.