feat: Change file structure

- Move return object to named export for 11ty config
- screens is now view
- 11ty data files moved to view/_data
- templates is now view/_includes
- Both are the default directories
- data is now used as intended, for user data
- Update index to reflect filenames and structure

source/view/demo/examples/songbook.liquid

@@ -0,0 +1,39 @@
+---
+title: Songbook
+tags:
+- demoExample
+---
+{% layout 'hippie/simple.liquid' %}
+
+{% block body %}
+<div class="sec_main_center">
+	<header class="header_txt">
+		<h1>Titel</h1>
+		<p>Jahr</p>
+	</header>
+	<nav role="doc-toc">
+		<h2>Inhaltsverzeichnis</h2>
+		<ul>
+			{%- for song in collections.song -%}
+				<li>
+					<a href="{{ song.page.url }}">{{ song.data.title }}</a>
+				</li>
+			{%- endfor -%}
+		</ul>
+	</nav>
+	<h2>Vorwort</h2>
+	<p>Liederbuch für
+		<em>Name</em>.</p>
+	<p>Gibt es gebunden und hier
+		{% link hippie.placeholders.domain %}.<br/>
+		Bestellungen bitte an
+		{% text hippie.placeholders.name %}
+		richten.</p>
+	<hr class="double dotted">
+	{%- for piece in collections.song -%}
+		{% render 'hippie/partials/song.liquid', index: forloop.index0, data: piece.data, content: piece.content %}
+	{%- endfor -%}
+	<hr/>
+	<address>{% text hippie.placeholders.name %}</address>
+</div>
+{% endblock %}