feat(editor): Add color selector to sticky node (#7453)

fixes: https://linear.app/n8n/issue/ADO-1223/feature-sticky-colors

---------

Co-authored-by: Giulio Andreini <g.andreini@gmail.com>
Co-authored-by: Mutasem <mutdmour@gmail.com>

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

@@ -44,6 +44,14 @@ export class StickyNote implements INodeType {
 				required: true,
 				default: 240,
 			},
+			{
+				displayName: 'Color',
+				name: 'color',
+				// eslint-disable-next-line n8n-nodes-base/node-param-color-type-unused
+				type: 'number',
+				required: true,
+				default: 1,
+			},
 		],
 	};