fix: 🐛 OIDC authentications not properly showing username (#2930)

* fix: 🐛 properly show username for oidc auth method in user menu

* test: 💍 fix admin ui tests

* test: 💍 fix desktop ui tests

* refactor: 💡 admin to not store username in authenticated object

* refactor: 💡 use getter in app controller

* test: 💍 POC for how we could update our tests to use auth account

* refactor: 💡 remove unused service

* test: 💍 fix all tests in ui/admin

* test: 💍 revert one change

* refactor: 💡 update ui/desktop w/ feedback + fix tests

* refactor: 💡 add in error handling

* refactor: 💡 cleanup unused service

* test: 💍 fix e2e test selector

✅ Closes: https://hashicorp.atlassian.net/browse/ICU-17231

addons/auth/addon/authenticators/base.js

@@ -101,7 +101,7 @@ export default class BaseAuthenticator extends SimpleAuthBaseAuthenticator {
    * @param {string} username
    * @return {object}
    */
-  normalizeData(data, username) {
+  normalizeData(data) {
     // Pull fields up from `data.attributes` for easier access in JavaScript.
     // The `attributes` field exists on the Go side for its convenience but is
     // unnecessary here.
@@ -109,7 +109,6 @@ export default class BaseAuthenticator extends SimpleAuthBaseAuthenticator {
     // Add booleans indicated the scope type
     data.isGlobal = data?.scope?.type === 'global';
     data.isOrg = data?.scope?.type === 'org';
-    if (username) data.username = username;
     return data;
   }