[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/ldap/ldap_group_sync_spec.ts

@@ -408,7 +408,7 @@ context('ldap', () => {
                 cy.wait(TIMEOUTS.THREE_SEC);
 
                 // # Type channel display name on Channel switcher input
-                cy.findByRole('textbox', {name: 'quick switch input'}).type(publicChannel.display_name);
+                cy.findByRole('combobox', {name: 'quick switch input'}).type(publicChannel.display_name);
                 cy.wait(TIMEOUTS.HALF_SEC);
 
                 // * Should open up suggestion list for channels
@@ -433,7 +433,7 @@ context('ldap', () => {
                 cy.wait(TIMEOUTS.THREE_SEC);
 
                 // # Type channel display name on Channel switcher input
-                cy.findByRole('textbox', {name: 'quick switch input'}).type(publicChannel.display_name);
+                cy.findByRole('combobox', {name: 'quick switch input'}).type(publicChannel.display_name);
                 cy.wait(TIMEOUTS.HALF_SEC);
 
                 // * Should open up suggestion list for channels