refactor(editor): Fix NodeView/Canvas related TS errors (#9581)

Signed-off-by: Oleg Ivaniv <me@olegivaniv.com>

packages/workflow/src/Interfaces.ts

@@ -68,7 +68,7 @@ export interface IConnection {
 	node: string;
 
 	// The type of the input on destination node (for example "main")
-	type: string;
+	type: NodeConnectionType;
 
 	// The output/input-index of destination node (if node has multiple inputs/outputs of the same type)
 	index: number;

packages/workflow/src/Workflow.ts

@@ -168,7 +168,8 @@ export class Workflow {
 			if (!connections.hasOwnProperty(sourceNode)) {
 				continue;
 			}
-			for (const type in connections[sourceNode]) {
+
+			for (const type of Object.keys(connections[sourceNode]) as NodeConnectionType[]) {
 				if (!connections[sourceNode].hasOwnProperty(type)) {
 					continue;
 				}