Meeting schedule updates

including copy to clipboard

WebApp/ClipboardService.cs

@@ -0,0 +1,22 @@
+using System.Threading.Tasks;
+using Microsoft.JSInterop;
+
+public sealed class ClipboardService
+{
+    private readonly IJSRuntime _jsRuntime;
+
+    public ClipboardService(IJSRuntime jsRuntime)
+    {
+        _jsRuntime = jsRuntime;
+    }
+
+    public ValueTask<string> ReadTextAsync()
+    {
+        return _jsRuntime.InvokeAsync<string>("navigator.clipboard.readText");
+    }
+
+    public ValueTask WriteTextAsync(string text)
+    {
+        return _jsRuntime.InvokeVoidAsync("navigator.clipboard.writeText", text);
+    }
+}