add experimental to headline

src/Umbraco.Web.UI.Client/src/packages/user/current-user/theme/current-user-theme-user-profile-app.element.ts

@@ -48,7 +48,7 @@ export class UmbCurrentUserThemeUserProfileAppElement extends UmbLitElement {
 	render() {
 		if (!this._themes.length) return nothing;
 		return html`
-			<uui-box headline="Theme">
+			<uui-box headline="Theme (Experimental)">
 				<uui-select label="Select theme" .options=${this._themes} @change=${this.#onThemeChange}></uui-select>
 			</uui-box>
 		`;