feat: Add app frame template

- All frame pages use app frame template
- Add form page to frames and add header

source/screens/demo/examples/ui/explorer.njk

@@ -4,23 +4,8 @@ tags:
 	- ui
 ---
 {% set pageId = page.fileSlug %}
-{% set bodyClass = "body_frame" %}
 
-{% extends "hippie/_app.njk" %}
-{% import "hippie/macros/_io.njk" as io %}
-
-{% block title %}{{ title }}
-{% endblock %}
-
-{% block links %}
-	{{ super() }}
-	<link href="/vendor/bootstrap-icons/font/bootstrap-icons.min.css" rel="stylesheet">
-	<link href="{{ pageBase }}css/ui.css" media="all" rel="stylesheet"/>
-{% endblock %}
-
-{% block head %}
-	{{ super() }}
-{% endblock %}
+{% extends "hippie/_app_frame.njk" %}
 
 {% block body %}
 	{{ io.frameHeader('title-bar') }}
@@ -177,8 +162,4 @@ tags:
 			<button>action</button>
 		</nav>
 	</footer>
-{% endblock %}
-
-{% block script %}
-	{{ super() }}
 {% endblock %}