Develop: Add ability to click on a search result to view the message

[mdconatser]

Depends on #396

As a user, I want to be able to click a mail piece in my search results to view it.

See mockups: https://xd.adobe.com/view/db7cd80e-542d-495d-8909-01d4b2607dbe-8e2f/screen/e421e377-e929-4977-bf38-eb51e5b9b2b3

Acceptance Criteria

• User can click an mail piece in the search results to navigate to the mail view
• Document any relevant content in the Programmer guide (draft thoughts of usage and importantly the "Why")
• Updates SRS and STP (and other docs if necessary)
• Add/Update relevant unit tests

[mdconatser]

tested on android

[Minyahil40]

tested on iPhone

[tatikozh]

tested on iPad

[wpbear1742]

Verified - Test PASS