Cover register and activation with e2e tests

tests-e2e/cypress/support/index.d.ts

@@ -15,10 +15,21 @@ declare namespace Cypress {
     /**
      * Custom command to log in the user
      *
-     * @example cy.login(account)
+     * @example cy.login({ accounts: ['default'] })
      */
     login(options: {
       accounts: AccountAlias[];
+      /**
+       * defaults to `true`. if `false` — than only api response will
+       * be returned without mutating app state
+       * (useful for custom scenarios such as mocking of other api responses
+       * or checking whether account is registered)
+       */
+      updateState?: boolean;
+      /**
+       * Whether return raw api response without any conversion. Defaults to: `false`
+       */
+      rawApiResp?: boolean;
     }): Promise<{ accounts: Account[] }>;
 
     getByTestId<S = any>(