Age assurance fast-follows (#8656)

* Add feed banner

* Comment

* Update nux name

* Handle did error

* Hide mod settings if underage or age restricted

* Add metrics

* Remove DEV override

* Copy suggestion

* Small copy edits

* useState

* Fix bug

* Update src/components/ageAssurance/useAgeAssuranceCopy.ts

Co-authored-by: surfdude29 <149612116+surfdude29@users.noreply.github.com>

* Get rid of debug button

---------

Co-authored-by: surfdude29 <149612116+surfdude29@users.noreply.github.com>

src/logger/metrics.ts

@@ -457,4 +457,20 @@ export type MetricEvents = {
     name: string
     value: string
   }
+
+  'ageAssurance:navigateToSettings': {}
+  'ageAssurance:dismissFeedBanner': {}
+  'ageAssurance:dismissSettingsNotice': {}
+  'ageAssurance:initDialogOpen': {
+    hasInitiatedPreviously: boolean
+  }
+  'ageAssurance:initDialogSubmit': {}
+  'ageAssurance:initDialogError': {
+    code: string
+  }
+  'ageAssurance:redirectDialogOpen': {}
+  'ageAssurance:redirectDialogSuccess': {}
+  'ageAssurance:redirectDialogFail': {}
+  'ageAssurance:appealDialogOpen': {}
+  'ageAssurance:appealDialogSubmit': {}
 }