Functions node fully refreshes after deploy (#3973)

* loadChildren on RemoteFunctions refresh since the list will not update

* Make init and refresh different functions

src/tree/remoteProject/RemoteFunctionsTreeItem.ts

@@ -26,14 +26,19 @@ export class RemoteFunctionsTreeItem extends FunctionsTreeItemBase {
     public static async createFunctionsTreeItem(context: IActionContext, parent: SlotTreeItem): Promise<RemoteFunctionsTreeItem> {
         const ti: RemoteFunctionsTreeItem = new RemoteFunctionsTreeItem(parent);
         // initialize
-        await ti.refreshImpl(context);
+        await ti.initAsync(context);
         return ti;
     }
 
-    public async refreshImpl(context: IActionContext): Promise<void> {
+    public async initAsync(context: IActionContext): Promise<void> {
         this.isReadOnly = await this.parent.isReadOnly(context);
     }
 
+    public async refreshImpl(context: IActionContext): Promise<void> {
+        await this.initAsync(context);
+        await this.loadAllChildren(context);
+    }
+
     public hasMoreChildrenImpl(): boolean {
         return !!this._nextLink;
     }