Added direct-chat launchers for assistant plugins and a dialog to reconfigure them (#935)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Components/DirectChatLauncherSettingsAction.razor

@@ -0,0 +1,13 @@
+@inherits MSGComponentBase
+
+@if (this.CanEditSettings)
+{
+    <MudTooltip Text="@T("Change what this tile opens")">
+        <MudIconButton Icon="@Icons.Material.Filled.Tune"
+                       Color="Color.Default"
+                       Variant="Variant.Text"
+                       Size="Size.Medium"
+                       Disabled="@this.isEditing"
+                       OnClick="@this.OpenSettingsDialogAsync"/>
+    </MudTooltip>
+}