[MM-55285]: Screen reader speaking wrong item in list in Find Channels modal (#29552)

* [MA-11]: Fix Screen reader speaking wrong item in list in Find Channels modal

* [MA-11]: Update types across files

* [MA-11]: Minor refactoring

* [MA-11]: Fix e2e test

* [MA-11]: Fix E2E tests

* [MA-11]: Update role and id

* [MA-11]: Fix playwright tests

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Co-authored-by: Mattermost Build <build@mattermost.com>

e2e-tests/cypress/tests/integration/channels/enterprise/guest_accounts/guest_identification_ui_spec.ts

@@ -133,7 +133,7 @@ describe('Verify Guest User Identification in different screens', () => {
         cy.uiOpenFindChannels();
 
         // # Type the guest user name on Channel switcher input
-        cy.findByRole('textbox', {name: 'quick switch input'}).type(guestUser.username).wait(TIMEOUTS.HALF_SEC);
+        cy.findByRole('combobox', {name: 'quick switch input'}).type(guestUser.username).wait(TIMEOUTS.HALF_SEC);
 
         // * Verify if Guest badge is displayed for the guest user in the Switch Channel Dialog
         cy.get('#suggestionList').should('be.visible');