Initial commit: Grav CMS setup with HTML reference material

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/admin/themes/grav/templates/forms/fields/themeselect/themeselect.html.twig

@@ -0,0 +1,31 @@
+{% extends "forms/field.html.twig" %}
+
+{% set options = {} %}
+{% for slug, package in admin.themes %}
+    {% set option = {(slug): package.toArray().name} %}
+    {% set options = options|merge(option) %}
+{% endfor %}
+
+{% block global_attributes %}
+    data-grav-selectize="{{ (field.selectize is defined ? field.selectize : {})|json_encode()|e('html_attr') }}"
+    data-grav-field="select"
+    data-grav-disabled="{{ originalValue is null ? 'true' : 'false' }}"
+    data-grav-default="{{ field.default|json_encode()|e('html_attr') }}"
+{% endblock %}
+
+{% block input %}
+    <div class="form-select-wrapper {{ field.size }}">
+        <select class="{{ field.classes }}" name="{{ (scope ~ field.name)|fieldName ~ (field.multiple ? '[]' : '') }}"
+                {% if field.autofocus in ['on', 'true', 1] %}autofocus="autofocus"{% endif %}
+                {% if field.novalidate in ['on', 'true', 1] %}novalidate="novalidate"{% endif %}
+                {% if field.validate.required in ['on', 'true', 1] %}required="required"{% endif %}
+                {% if field.multiple in ['on', 'true', 1] %}multiple="multiple"{% endif %}
+                {% if field.disabled or isDisabledToggleable %}disabled="disabled"{% endif %}>
+            {% for key, text in options %}
+                <option {% if key == value or text in value %}selected="selected"{% endif %} value="{{ field.multiple ? text : key }}">{{ text }}</option>
+            {% endfor %}
+        </select>
+    </div>
+{% endblock %}
+
+