chore: onboarding metrics (#1626)

* fix: pageview tracking

* feat: add onboarding telemetry

* create single `onboardingStatus` type

* improved var naming

* remove console logs

Author: Patrick-Erichsen

gui/src/pages/onboarding/utils.ts

@@ -10,6 +10,7 @@ export type OnboardingStatus = "Started" | "Completed";
 // If there is no value in local storage for "onboardingStatus",
 // it implies that the user has not begun or completed onboarding.
 export function shouldBeginOnboarding() {
+  // We used to use "onboardingComplete", but switched to "onboardingStatus"
   const onboardingCompleteLegacyValue =
     localStorage.getItem("onboardingComplete");
   if (onboardingCompleteLegacyValue === "true") {