feat(Node): add the Scheduler Node (#4223)

* ✨ Create Schedule node with MVP structure

* ✨ Add 24 increments for hours picker

* 🚨  Lintfix

* Add timestamp, add hour minute and cron expression

* Fix bug where there was one extra interval object

* Fix default value from fixedCollection

* 🐛 UI fixes

* 🎨 Changed logic to reflect UI fixes

* Fix auto intitialising

* Deprecated interval and cron in favor of schedule node

* 🐛 Ui fixes

* 🐛 Fix issue with week intervals

* 🚨 Lint fixes

* change order of days in the week to chronological order

packages/nodes-base/nodes/Schedule/ScheduleTrigger.node.json

@@ -0,0 +1,18 @@
+{
+	"node": "n8n-nodes-base.scheduleTrigger",
+	"nodeVersion": "1.0",
+	"codexVersion": "1.0",
+	"categories": ["Core Nodes"],
+	"resources": {
+		"primaryDocumentation": [
+			{
+				"url": "https://docs.n8n.io/nodes/n8n-nodes-base.scheduleTrigger/"
+			}
+		],
+		"generic": []
+	},
+	"alias": ["Time", "Scheduler", "Polling", "Cron", "Interval"],
+	"subcategories": {
+		"Core Nodes": ["Flow"]
+	}
+}