feat(editor): Add mapping support for data paths (#5191)

* feat: add data path flag

* chore: update types

* feat: use path for data

* feat: add support for multiple values

* fix: handle if not prev node

* fix: update node

* fix: handle multi part path

* feat: add support for multiple vals for field

* feat: add support for table transforms

* feat: use dot notation

* feat: fix bug where brackets removed

* fix: handle dots, fix unit tests

* test: update snapshot

* test: fix tests

* test: add test for edge case

packages/nodes-base/nodes/Merge/v2/MergeV2.node.ts

@@ -122,6 +122,7 @@ const versionDescription: INodeTypeDescription = {
 							// eslint-disable-next-line n8n-nodes-base/node-param-placeholder-miscased-id
 							placeholder: 'e.g. id',
 							hint: ' Enter the field name as text',
+							requiresDataPath: 'single',
 						},
 						{
 							displayName: 'Input 2 Field',
@@ -131,6 +132,7 @@ const versionDescription: INodeTypeDescription = {
 							// eslint-disable-next-line n8n-nodes-base/node-param-placeholder-miscased-id
 							placeholder: 'e.g. id',
 							hint: ' Enter the field name as text',
+							requiresDataPath: 'single',
 						},
 					],
 				},