feat: update ShellUI version and add shellui-js component to registry

Bumped the ShellUI version suffix to alpha.3 and included the new shellui-js component in the ComponentRegistry, enhancing the component library with additional functionality.

Author: Shewart

Directory.Build.props

@@ -3,7 +3,7 @@
   <!-- Centralized ShellUI Version - Update this single file to version all components -->
   <PropertyGroup>
     <ShellUIVersion>0.3.0</ShellUIVersion>
-    <ShellUIVersionSuffix>alpha.2</ShellUIVersionSuffix>
+    <ShellUIVersionSuffix>alpha.3</ShellUIVersionSuffix>
   </PropertyGroup>
 
   <!-- Common properties for all ShellUI projects -->

src/ShellUI.Templates/ComponentRegistry.cs

@@ -8,6 +8,7 @@ public static class ComponentRegistry
     public static readonly Dictionary<string, ComponentMetadata> Components = new()
     {
         { "shell", ShellTemplate.Metadata },
+        { "shellui-js", ShellUIJsTemplate.Metadata },
         { "button", ButtonTemplate.Metadata },
         { "button-variants", ButtonVariantsTemplate.Metadata },
         { "theme-toggle", ThemeToggleTemplate.Metadata },
@@ -177,6 +178,7 @@ public static class ComponentRegistry
         return componentName.ToLower() switch
         {
             "shell" => ShellTemplate.Content,
+            "shellui-js" => ShellUIJsTemplate.Content,
             "button" => ButtonTemplate.Content,
             "button-variants" => ButtonVariantsTemplate.Content,
             "theme-toggle" => ThemeToggleTemplate.Content,