feat: Data transformation nodes and actions in Nodes Panel (#7760)

- Split Items List node into separate nodes per action
- Review node descriptions
- New icons
- New sections in subcategories

---------

Co-authored-by: Giulio Andreini <andreini@netseven.it>
Co-authored-by: Deborah <deborah@starfallprojects.co.uk>
Co-authored-by: Michael Kret <michael.k@radency.com>

packages/nodes-base/nodes/Transform/RemoveDuplicates/utils.ts

@@ -0,0 +1,36 @@
+import get from 'lodash/get';
+import isEqual from 'lodash/isEqual';
+import isObject from 'lodash/isObject';
+import merge from 'lodash/merge';
+import reduce from 'lodash/reduce';
+import type { IDataObject, INode, INodeExecutionData } from 'n8n-workflow';
+
+export const compareItems = (
+	obj: INodeExecutionData,
+	obj2: INodeExecutionData,
+	keys: string[],
+	disableDotNotation: boolean,
+	_node: INode,
+) => {
+	let result = true;
+	for (const key of keys) {
+		if (!disableDotNotation) {
+			if (!isEqual(get(obj.json, key), get(obj2.json, key))) {
+				result = false;
+				break;
+			}
+		} else {
+			if (!isEqual(obj.json[key], obj2.json[key])) {
+				result = false;
+				break;
+			}
+		}
+	}
+	return result;
+};
+
+export const flattenKeys = (obj: IDataObject, path: string[] = []): IDataObject => {
+	return !isObject(obj)
+		? { [path.join('.')]: obj }
+		: reduce(obj, (cum, next, key) => merge(cum, flattenKeys(next as IDataObject, [...path, key])), {}); //prettier-ignore
+};