Add email to all rageshakes

[estellecomment]

Issue : #920

Refactor the bug-reporting patch to cover all code flows.

There are two kinds of rageshakes :

• feedback (from "Feedback"/"Commentaire" in user menu) (we are going to remove it Remove the "Commentaire" feature #938)
• bugreport (from "Report a problem" in user menu, from "Report a problem" after a voip call, from auto-rageshake-on-uisi).

For the two kinds, add email + appname.

The BugReportDialog still has to add the voip info, and customize the UI.
LegacyCallEvent (for voip) is unchanged in this PR.

Diagram of what's going on if it helps :)

Tests :
BugReportDialog :

• UI changes : partial snapshot ?
• submit-rageshake.sendBugReport is called, with voip fields if needed

Submit-rageshake

• sendBugReport : Voip fields are passed to httpreq if present
• sendBugReport : Email and app name are passed to httpreq
• submitFeeback : Email and app name are passed to httpreq

LegacyCallEvent

• button is shown after finished successful call
• clicking button opens BugreportDialog, and passes "voip" in the props

[MarcWadai]

Vraiment trop trop cool pour units tests!! GG !!! 👍 👍