Update example app

This MR updates the example app so it uses the new Bindings wrapper.

• Present landing page with options to create or load cMix.
• Allow removing cMix if stored.
• Start/stop network follower.
• Show network follower status.
• Observe and display network health status.

requested review from @brunomunizaf

assigned to @darrarski.xx

changed the description

added 8 commits

• 591167a2...f325f8cb - 7 commits from branch development
• 4747705b - Merge branch 'development' into feature/example-app-landing

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added 2 commits

• c0ac75b8 - 1 commit from branch development
• 19487205 - Merge branch 'development' into feature/example-app-landing

Compare with previous version

mentioned in commit c8be727c

merged