MM-61306: Cypress/E2E, fixed failed tests (#28959)

e2e-tests/cypress/tests/integration/channels/notifications/message_bar_spec.js

@@ -68,7 +68,7 @@ describe('Notifications', () => {
 
             // # Enter "in:town-square" in the search bar and hit ENTER
             cy.uiGetSearchContainer().click();
-            cy.uiGetSearchBox().find('input').
+            cy.uiGetSearchBox().
                 typeWithForce('in:town-square').
                 wait(TIMEOUTS.HALF_SEC).
                 typeWithForce('{enter}').