Thread reply edit file handling bug fix (#30470)

* Fixed a bug where escape would delete all typed content

* Fixed rootId and postID

* fixed tests

* Type fix

* Fixed a test

* Search result edit fix

* Removed a test change

* threads view isn't RHS

* Fixed a cypress test

* Fixed a cypress test

* Fixed a flaky playwighr test

e2e-tests/cypress/tests/integration/channels/keyboard_shortcuts/up_arrow_edit_message_spec.js

@@ -302,7 +302,10 @@ describe('Keyboard Shortcuts', () => {
         cy.uiGetPostTextBox().type('{uparrow}');
 
         // # Add some text to the previous message and save
-        cy.get('#edit_textbox').type('Test').type('{enter}');
+        // cy.get('#edit_textbox').type('Test').type('{enter}');
+        cy.get('#edit_textbox').type('Test');
+        cy.wait(TIMEOUTS.ONE_SEC);
+        cy.get('#edit_textbox').type('{enter}');
         cy.wait(TIMEOUTS.ONE_SEC);
 
         cy.getLastPost().within(() => {