test: try fixing the failing test

Author: lyjeileen

src/components/messageCanvas/actions/copy/copy.cy.tsx

@@ -19,6 +19,7 @@ describe('Copy component', () => {
     cy.get(copyButton).click()
     cy.window().then((win) => {
       win.navigator.clipboard.readText().then((text) => {
+        window.focus()
         expect(text).to.eq('Hello World')
       })
     })