[MM-30432]: Allow users to specify different desktop notification sounds per channel (#21671)

e2e-tests/cypress/tests/integration/channels/collapsed_reply_threads/channel_notifications_spec.js

@@ -245,7 +245,7 @@ function setCRTDesktopNotification(type) {
     cy.get('#desktopTitle').
         scrollIntoView().
         should('be.visible').
-        and('contain', 'Send desktop notifications').click();
+        and('contain', 'Desktop notifications').click();
 
     // # Select mentions category for messages.
     cy.get('#channelNotificationMentions').scrollIntoView().check();

e2e-tests/cypress/tests/integration/channels/notifications/desktop_notifications_2_spec.js

@@ -53,7 +53,7 @@ describe('Desktop notifications', () => {
 
         // # Set channel notifications to show on mention only
         cy.uiOpenChannelMenu('Notification Preferences');
-        cy.findByText('Send desktop notifications').click();
+        cy.findByText('Desktop notifications').click();
         cy.findByRole('radio', {name: 'Only for mentions'}).click();
         cy.uiSaveAndClose();