feat(Frontend): implement app tour (SCRUM-290)

[FelixTeutsch]

Changes:

• App Tour implemented for Students, Supervisors and Admins.
• Navigate to App Tour after Tags have been selected and arranged
• Fix UX complain that student adds field is not always visible.
  

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What is missing: The admin does not get shown the app tour. This has to do with routing, and is beyond me to fix. Go to 01.routing.global.ts and edit the following lines to redirect to app tour if first sign on:

  if (userRole === UserRoles.ADMIN) {
    if (!to.path.startsWith('/admin')) {
      return navigateTo('/admin/dashboard')
    }
    return
  }

[FelixTeutsch]

FML

[FelixTeutsch]

Un-FML, all good

[nb159]

Looks good to me, good job

[jb-cc]

veni, vidi