[MM-61631]: Remove focusable child descendants (#29745)

* [MA-37]: Remove focusable child descendants

* [MA-37]: Fix E2E tests

---------

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

e2e-tests/cypress/tests/integration/channels/integrations/slash_commands_spec.js

@@ -152,7 +152,7 @@ describe('Integrations', () => {
         cy.uiWaitUntilMessagePostedIncludes(firstMessage);
 
         // * The user stays in the same team
-        cy.get(`#${team1.name}TeamButton`).parent().should('have.class', 'active');
+        cy.get(`#${team1.name}TeamButton`).children().should('have.class', 'active');
 
         // * The user is in the DM channel with user2
         cy.get(`#sidebarItem_${Cypress._.sortBy([user1.id, user2.id]).join('__')}`).parent().should('be.visible').and('have.class', 'active');
@@ -168,7 +168,7 @@ describe('Integrations', () => {
         cy.uiWaitUntilMessagePostedIncludes(secondMessage);
 
         // * The user stays in the same team
-        cy.get(`#${team2.name}TeamButton`).parent().should('have.class', 'active');
+        cy.get(`#${team2.name}TeamButton`).children().should('have.class', 'active');
 
         // * The user is in the DM channel with user2
         cy.get(`#sidebarItem_${Cypress._.sortBy([user1.id, user2.id]).join('__')}`).parent().should('be.visible').and('have.class', 'active');

e2e-tests/cypress/tests/integration/channels/multi_team_and_dm/multi_team_spec.js

@@ -142,7 +142,7 @@ describe('Send a DM', () => {
         // * Dot appears, with no number (just unread, not a mention)
         cy.apiLogin(userA);
         cy.visit(offTopicUrlB);
-        cy.get(`#${teamA.name}TeamButton`).parent('.unread').should('be.visible');
+        cy.get(`#${teamA.name}TeamButton`).children('.unread').should('be.visible');
         cy.get(`#${teamA.name}TeamButton`).should('be.visible').within(() => {
             cy.get('.badge').should('not.exist');
         });