[MM-61647][MM-61651]: Upgraded react-select to v5 (#30070)

* [MM-61647]: Upgraded react-select to v5
- Updated old type definitions with new v5 packaged type definitions.
- Removed some unused props
- Updated onBlur, onFocus and handleInputChange methods in user_input_email component

* Fix incorrect usage of handleInputChange in ChannelsInput

* Remove type assertions from dropdown_input_hybrid.tsx

* Simplify typing of users_emails_input.tsx

* [MM-61647][MM-61651]: Fixed some type definitions and e2e failing test case

* [MM-61647][MM-61651]: Fixed type error in dropdown_input_hybrid

* [MM-61647][MM-61651]: Fixed failing CI type error and e2e test cases

* [MM-61647][MM-61651]: Fixed failing e2e test case

* [MM-61647][MM-61651]: Updated the styles and reverted the test case changes
- Fixed the theme not getting correctly inherited
- Fixed the timezone and language settings getting saved on enter

---------

Co-authored-by: Harrison Healey <harrisonmhealey@gmail.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

e2e-tests/cypress/tests/integration/channels/enterprise/system_console/channel_members_spec.js

@@ -119,7 +119,7 @@ describe('Channel members test', () => {
         cy.get('#addChannelMembers').click();
 
         // # Enter user1 and user2 emails
-        cy.findByRole('textbox', {name: 'Search for people or groups'}).typeWithForce(`${user1.email}{enter}${user2.email}{enter}`);
+        cy.findByRole('combobox', {name: 'Search for people or groups'}).typeWithForce(`${user1.email}{enter}${user2.email}{enter}`);
 
         // # Confirm add the users
         cy.get('#addUsersToChannelModal #saveItems').click();

e2e-tests/cypress/tests/integration/channels/enterprise/system_console/helpers.js

@@ -50,7 +50,7 @@ export function makeUserASystemRole(testUsers, role) {
     cy.findByRole('button', {name: 'Add People'}).click().wait(TIMEOUTS.HALF_SEC);
 
     // # Type in user name
-    cy.findByRole('textbox', {name: 'Search for people'}).typeWithForce(`${testUsers[role].email}`);
+    cy.findByRole('combobox', {name: 'Search for people'}).typeWithForce(`${testUsers[role].email}`);
 
     // # Find the user and click on him
     cy.get('#multiSelectList').should('be.visible').children().first().click({force: true});

e2e-tests/cypress/tests/integration/channels/enterprise/system_console/user_management/user_management_admin_control_spec.js

@@ -135,7 +135,7 @@ describe('User Management', () => {
         cy.findByRole('button', {name: 'Add People'}).click().wait(TIMEOUTS.HALF_SEC);
 
         // # Type in user name
-        cy.findByRole('textbox', {name: 'Search for people'}).typeWithForce(`${userEmail}`);
+        cy.findByRole('combobox', {name: 'Search for people'}).typeWithForce(`${userEmail}`);
 
         // # Find the user and click on him
         cy.get('#multiSelectList').should('be.visible').children().first().click({force: true});