Add three icons, a styleable menu button and a reliable back-to-top in 1.13.0

The icon set had no drawing for people, music or a house - the three pictures
the Tagespflege Moldovan template asks for. They join as `people`, `music` and
`home`; a test keeps the list and the drawings together, because a missing path
renders an empty `<path d="">`: invisible, without an error.

An icon block's own colour never reached its drawing: the embedded SVG carries
the same `block-icon` class as its wrapper and set the accent colour again.
`.block-icon .block-icon{color:inherit}` fixes it at the root.

The menu button becomes a thing you can shape. `burgerLabel` chooses symbol and
text, text only or symbol only (which keeps the name for screen readers), and
the new style group `menu` targets the button itself, the way `img` targets an
image and `controls` the slider. Inside the header the opened menu now lies
under the header across the full width instead of pushing the header apart -
on a phone that looked like a missing navigation.

The back-to-top button no longer depends on `animation-timeline: scroll()`. A
browser that parses the property but does not run the timeline left it in the
first frame of the animation: permanently invisible. Two classes from
scrolled.js decide now, and without a script the button simply stays visible.

Also: the Tagespflege Moldovan rebuild as its own installation, built only by
`scripts/seed-tagespflege-moldovan.php`.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

templates/blocks/block.html.twig

@@ -99,7 +99,9 @@
          aria-label="{{ {header: 'Hauptnavigation', secondary: 'Zweite Navigation', footer: 'Fußzeile', legal: 'Rechtliches'}[props.slot]|default('Navigation') }}">
         {% if menuLayout == 'burger' or collapse != 'never' %}
         <details class="menu-burger">
-            <summary><span class="burger-lines" aria-hidden="true"></span><span class="burger-text">Menü</span></summary>
+            {# Nur Symbol behält den Namen für Vorlesesoftware; sichtbar ist dann nur der Strich. #}
+            {% set burger = props.burgerLabel|default('both') %}
+            <summary>{% if burger != 'text' %}<span class="burger-lines" aria-hidden="true"></span>{% endif %}<span class="burger-text{{ burger == 'icon' ? ' visually-hidden' : '' }}">Menü</span></summary>
             <div class="menu-burger-body">{% include 'nav.html.twig' with {links: links} only %}</div>
         </details>
         {% endif %}

templates/blocks/icon.html.twig

@@ -13,6 +13,9 @@
     phone: 'M6 3h4l2 5-2.5 1.5a12 12 0 0 0 5 5L16 12l5 2v4a2 2 0 0 1-2 2A16 16 0 0 1 4 5a2 2 0 0 1 2-2Z',
     mail: 'M3 6h18v12H3Zm0 1 9 7 9-7',
     pin: 'M12 21s7-6.3 7-11a7 7 0 1 0-14 0c0 4.7 7 11 7 11Zm0-8.5a2.5 2.5 0 1 0 0-5 2.5 2.5 0 0 0 0 5Z',
-    check: 'm4 12.5 5.5 5.5L20 6'
+    check: 'm4 12.5 5.5 5.5L20 6',
+    people: 'M9.5 11.5a3.5 3.5 0 1 0 0-7 3.5 3.5 0 0 0 0 7ZM2.5 20v-1c0-3.3 3-5 7-5s7 1.7 7 5v1M16.5 5.3a3.2 3.2 0 0 1 0 6.4M18 14.4c2.1.7 3.5 2.1 3.5 4.1V20',
+    music: 'M10 18V5.5L20 3v12.5M10 9.5 20 7M10 18a3 2.5 0 1 0-6 0 3 2.5 0 0 0 6 0ZM20 15.5a3 2.5 0 1 0-6 0 3 2.5 0 0 0 6 0Z',
+    home: 'm3 11.5 9-7.5 9 7.5M5.5 10v10h13V10M10 20v-6.5h4V20'
 } %}
 <svg class="block-icon" viewBox="0 0 24 24" width="32" height="32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true" focusable="false"><path d="{{ paths[name] }}"/></svg>