message: docs(aio): move pipes guide under components
diff: "url": "guide/dynamic-component-loader",
  "title": "Dynamic Components",
  "tooltip": "Load components dynamically."
  + },
  + {
  + "url": "guide/pipes",
  + "title": "Pipes",
  + "tooltip": "Pipes transform displayed values within a template."
  }
  ]
  },
  "tooltip": "Translate the app's template text into multiple languages."
  },
  - {
  - "url": "guide/pipes",
  - "title": "Pipes",
  - "tooltip": "Pipes transform displayed values within a template."
  - },
  -
  {
  "url": "guide/router",
  "title": "Routing & Navigation",
  