Rewrite Analytics impl in Designer

Instead of using default Google Analytics component, we should rely on our custom segment.io.

Each navigation must send a page event using the same pattern than Modeler, for instance: Studio / Configuration Event Handlers (Edit).
Which could be seen as: Studio / <screen> <sub-screen> <action> (should be renamed Studio / Modeler / <screen> <sub-screen> <action>)
We should find a similar pattern for Designer, for instanced: Studio / Designer / Layouts Local Document (Create)

See: com.nuxeo.studio.client.analytics.Analytics#trackPage for Modelere Java impl

Acceptance:

• Rely on Segment IO plugin
• Each navigation through Designer sends a correct page event with a title following the convention: Studio / Designer|Modeler / <screen> <sub-screen> <action>