Added client side repos

src/Portfolio.Web/Components/CancellableComponent.cs

@@ -0,0 +1,11 @@
+using Microsoft.AspNetCore.Components;
+
+namespace Portfolio.Web.Components;
+
+public class CancellableComponent : ComponentBase, IDisposable {
+    protected CancellationTokenSource TokenSource { get; } = new();
+    
+    public void Dispose() {
+        TokenSource.Dispose();
+    }
+}