fix(editor): Make sticky node content parameter non require to support empty stickies (#9192)

cypress/e2e/25-stickies.cy.ts

@@ -243,6 +243,20 @@ describe('Canvas Actions', () => {
 				expect($el).to.have.css('z-index', '-158');
 			});
 	});
+
+	it('Empty sticky should not error when activating workflow', () => {
+		workflowPage.actions.addSticky();
+
+		workflowPage.getters.stickies().should('have.length', 1);
+
+		workflowPage.getters.stickies().dblclick();
+
+		workflowPage.actions.clearSticky();
+
+		workflowPage.actions.addNodeToCanvas('Schedule Trigger');
+
+		workflowPage.actions.activateWorkflow();
+	});
 });
 
 type Position = {

cypress/pages/workflow.ts

@@ -419,6 +419,9 @@ export class WorkflowPage extends BasePage {
 		editSticky: (content: string) => {
 			this.getters.stickies().dblclick().find('textarea').clear().type(content).type('{esc}');
 		},
+		clearSticky: () => {
+			this.getters.stickies().dblclick().find('textarea').clear().type('{esc}');
+		},
 		shouldHaveWorkflowName: (name: string) => {
 			this.getters.workflowNameInputContainer().invoke('attr', 'title').should('include', name);
 		},

packages/nodes-base/nodes/StickyNote/StickyNote.node.ts

@@ -26,7 +26,6 @@ export class StickyNote implements INodeType {
 				displayName: 'Content',
 				name: 'content',
 				type: 'string',
-				required: true,
 				default:
 					"## I'm a note \n**Double click** to edit me. [Guide](https://docs.n8n.io/workflows/sticky-notes/)",
 			},