Improve e2e tests (#8927)

* get e2e image picker working

* verify create account actually reaches onboarding

* wait for image to actually be attached before posting

* wait until login finishes before moving on

* sign out before switch accounts then wait until logged in

* disable onboarding experiments in e2e

* add testId to handle availability checkmark

* fix too long username

* update thread muting test to reflect current behaviour

* hackfix for the british english translation

* unflake the onboarding tests

* fix curate list flow

* admit defeat on the most list one

__e2e__/flows/onboarding.yml

@@ -3,11 +3,15 @@ appId: xyz.blueskyweb.app
 - runScript:
     file: ../setupServer.js
     env:
-        SERVER_PATH: "?users"
+      SERVER_PATH: "?users"
 - runFlow:
     file: ../setupApp.yml
 - tapOn:
     id: "e2eSignInAlice"
+- extendedWaitUntil:
+    visible:
+      id: "viewHeaderHomeFeedPrefsBtn"
+
 - tapOn:
     id: "e2eStartOnboarding"
 - tapOn: "Select an avatar"
@@ -18,12 +22,12 @@ appId: xyz.blueskyweb.app
 - waitForAnimationToEnd
 - tapOn: "Done"
 - waitForAnimationToEnd
-- tapOn: "Continue to next step"
+- tapOn:
+    id: "onboardingContinue"
 - assertVisible: "What are your interests?"
 - tapOn:
-    label: "Tap on continue"
-    point: "50%,92%"
+    id: "onboardingContinue"
 - assertVisible: "You're ready to go!"
 - tapOn:
-    label: "Tap on Lets go"
-    point: "50%,92%"
+    id: "onboardingFinish"
+- assertVisible: "Following"