No issue: Rename Event for naming consistency.

(cherry picked from commit 8b3a878062)

app/src/main/java/org/mozilla/fenix/components/metrics/Event.kt

@@ -226,7 +226,7 @@ sealed class Event {
     object OpenedTabSuggestionClicked : Event()
 
     // Set default browser experiment metrics
-    object SetDefaultBrowserClicked : Event()
+    object SetDefaultBrowserNewTabClicked : Event()
     object CloseExperimentCardClicked : Event()
     object ToolbarMenuShown : Event()
     object SetDefaultBrowserToolbarMenuClicked : Event()

app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt

@@ -833,7 +833,7 @@ private val Event.wrapper: EventWrapper<*>?
         is Event.CloseExperimentCardClicked -> EventWrapper<NoExtraKeys>(
             { SetDefaultNewtabExperiment.closeExperimentCardClicked.record(it) }
         )
-        is Event.SetDefaultBrowserClicked -> EventWrapper<NoExtraKeys>(
+        is Event.SetDefaultBrowserNewTabClicked -> EventWrapper<NoExtraKeys>(
             { SetDefaultNewtabExperiment.setDefaultBrowserClicked.record(it) }
         )
         is Event.SetDefaultBrowserSettingsScreenClicked -> EventWrapper<NoExtraKeys>(

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlController.kt

@@ -567,7 +567,7 @@ class DefaultSessionControlController(
 
     override fun handleSetDefaultBrowser() {
         settings.userDismissedExperimentCard = true
-        metrics.track(Event.SetDefaultBrowserClicked)
+        metrics.track(Event.SetDefaultBrowserNewTabClicked)
         activity.openSetDefaultBrowserOption()
     }