feat(core): Improve paired item and add additional variables (#3765)

* ⚡ Remove duplicate and old string

* ⚡ Add telemetry

* ⚡ Futher improvements

* ⚡ Change error message and display only name of last parameter

* 👕 Fix lint issue

* ⚡ Remove not needed comments

* ⚡ Rename properties, add new ones and improve error messages

* ⚡ Add support for $execution, $prevNode and make it possible to use proxies as object

* ⚡ Some small improvements

* 🐛 Fix error message

* ⚡ Improve some error messages

* ⚡ Change resumeUrl variable and display in editor

* ⚡ Fix and extend tests

* ⚡ Multiple pairedItem improvements

* ⚡ Display "More Info" link with error messages if user can fix issue

* ⚡ Display different errors in Function Nodes

packages/editor-ui/src/components/mixins/workflowHelpers.ts

@@ -498,7 +498,7 @@ export const workflowHelpers = mixins(
 
 			getWebhookUrl (webhookData: IWebhookDescription, node: INode, showUrlFor?: string): string {
 				if (webhookData.restartWebhook === true) {
-					return '$resumeWebhookUrl';
+					return '$execution.resumeUrl';
 				}
 				let baseUrl = this.$store.getters.getWebhookUrl;
 				if (showUrlFor === 'test') {
@@ -577,6 +577,13 @@ export const workflowHelpers = mixins(
 				}
 
 				const additionalKeys: IWorkflowDataProxyAdditionalKeys = {
+					$execution: {
+						id: PLACEHOLDER_FILLED_AT_EXECUTION_TIME,
+						mode: 'test',
+						resumeUrl: PLACEHOLDER_FILLED_AT_EXECUTION_TIME,
+					},
+
+					// deprecated
 					$executionId: PLACEHOLDER_FILLED_AT_EXECUTION_TIME,
 					$resumeWebhookUrl: PLACEHOLDER_FILLED_AT_EXECUTION_TIME,
 				};