Metametrics (#6171)

* Add metametrics provider and util.

* Add backend api and state for participating in metametrics.

* Add frontend action for participating in metametrics.

* Add metametrics opt-in screen.

* Add metametrics events to first time flow.

* Add metametrics events for route changes

* Add metametrics events for send and confirm screens

* Add metametrics events to dropdowns, transactions, log in and out, settings, sig requests and main screen

* Ensures each log in is measured as a new visit by metametrics.

* Ensure metametrics is called with an empty string for dimensions params if specified

* Adds opt in metametrics modal after unlock for existing users

* Adds settings page toggle for opting in and out of MetaMetrics

* Switch metametrics dimensions to page level scope

* Lint, test and translation fixes for metametrics.

* Update design for metametrics opt-in screen

* Complete responsive styling of metametrics-opt-in modal

* Use new chart image on metrics opt in screens

* Incorporate the metametrics opt-in screen into the new onboarding flow

* Update e2e tests to accomodate metametrics changes

* Mock out metametrics network requests in integration tests

* Fix tx-list integration test to support metametrics provider.

* Send number of tokens and accounts data with every metametrics event.

* Update metametrics event descriptor schema and add new events.

* Fix import tos bug and send gas button bug due to metametrics changes.

* Various small fixes on the metametrics branch.

* Add origin custom variable type to metametrics.util

* Fix names of onboarding complete actions (metametrics).

* Fix names of Metrics Options actions (metametrics).

* Clean up code related to metametrics.

* Fix bad merge conflict resolution and improve promise handling in sendMetaMetrics event and confrim tx base

* Don't send a second metrics event if user has gone back during first time flow.

* Collect metametrics on going back from onboarding create/import.

* Add missing custom variable constants for metametrics

* Fix metametrics provider

* Make height of opt-in modal responsive.

* Adjust text content for opt-in modal.

* Update metametrics event names and clean up code in opt-in-modal

* Put phishing warning step next to last in onboarding flow

* Link terms of service on create and import screens of first time flow

* Add subtext to options on the onboarding select action screen.

* Fix styling of bullet points on end of onboarding screen.

* Combine phishing warning and congratulations screens.

* Fix placement of users if unlocking after an incomplete onboarding import flow.

* Fix capitalization in opt-in screen

* Fix last onboarding screen translations

* Add link to 'Learn More' on the last screen of onboarding

* Code clean up: metametrics branch

* Update e2e tests for phishing warning step removal

* e2e tests passing on metametrics branch

* Different tracking urls for metametrics on development and prod

1 files changed, 2 insertions, 1 deletions

diff --git a/development/states/tx-list-items.json b/development/states/tx-list-items.json
index 7939e3d94..d4e3f3860 100644
--- a/development/states/tx-list-items.json
+++ b/development/states/tx-list-items.json
@@ -1403,5 +1403,6 @@
     ],
     "priceAndTimeEstimatesLastRetrieved": 1541527901281,
     "errors": {}
-  }
+  },
+  "confirmTransaction": {}
 }