Bugfix/include optional node inputs (#271)

* Minor changes and extra nodes

* Added Preview Image for Nodes

* Add a delete images button on main floating menu

* Add a confirmation dialog

* Remove DeleteAll, Remove Custom KSampler, Remove Image List

* Remove Image and Custom Json Load

* Remove Custom Nodes

* remove patch.diff

web/scripts/app.js

@@ -683,7 +683,10 @@ class ComfyApp {
 			const nodeData = defs[nodeId];
 			const node = Object.assign(
 				function ComfyNode() {
-					const inputs = nodeData["input"]["required"];
+					var inputs = nodeData["input"]["required"];
+					if (nodeData["input"]["optional"] != undefined){
+					    inputs = Object.assign({}, nodeData["input"]["required"], nodeData["input"]["optional"])
+					}
 					const config = { minWidth: 1, minHeight: 1 };
 					for (const inputName in inputs) {
 						const inputData = inputs[inputName];