Add homepage block, reactive controls, i18n, and full-width layout

- Implement ModuleBlockInterface for tree/user homepage embedding
  with configurable individual and generation settings
- Make generation sliders reactive (auto-navigate on change)
- Persist generation counts when clicking between persons
- Expand chart to full viewport width and remaining height
- Add German and Dutch translations for all custom strings
- Pass translated labels to JS bio card tooltip via window.fullDiagramI18n
- Use webtrees core translation keys where available
- Increase default generations to 4, remove show siblings checkbox
- Expose Chart class globally for block instantiation

resources/views/modules/full-diagram/chart.phtml

@@ -2,6 +2,7 @@
 
 declare(strict_types=1);
 
+use Fisharebest\Webtrees\I18N;
 use Fisharebest\Webtrees\Individual;
 use Fisharebest\Webtrees\Module\ModuleChartInterface;
 use Fisharebest\Webtrees\Tree;
@@ -13,17 +14,50 @@ use Fisharebest\Webtrees\Tree;
  * @var string              $tree_data
  * @var string              $javascript_url
  * @var string              $stylesheet_url
+ * @var int                 $ancestor_generations
+ * @var int                 $descendant_generations
+ * @var bool                $show_siblings
  */
 ?>
 
 <link rel="stylesheet" href="<?= e($stylesheet_url) ?>">
 
-<div id="full-diagram-container" class="full-diagram-container wt-chart" data-tree-name="<?= e($tree->name()) ?>" style="width:100%;height:700px;">
+<div id="full-diagram-container" class="full-diagram-container wt-chart" data-tree-name="<?= e($tree->name()) ?>">
     <div class="full-diagram-chart"></div>
 </div>
 
 <script>
+(function() {
+    var el = document.getElementById('full-diagram-container');
+    function resize() {
+        var rect = el.getBoundingClientRect();
+        el.style.height = Math.max(400, window.innerHeight - rect.top - 16) + 'px';
+    }
+    resize();
+    window.addEventListener('resize', resize);
+})();
+</script>
+
+<script>
+    window.fullDiagramI18n = <?= json_encode([
+        'Born'            => I18N::translate('Born'),
+        'Baptism'         => I18N::translate('Baptism'),
+        'Marriage'        => I18N::translate('Marriage'),
+        'Died'            => I18N::translate('Died'),
+        'Occupation'      => I18N::translate('Occupation'),
+        'Residence'       => I18N::translate('Residence'),
+        'View profile'    => I18N::translate('View profile'),
+        'Died at age %s'  => I18N::translate('Died at age %s', '__AGE__'),
+        'Deceased'        => I18N::translate('Deceased'),
+        'Age ~%s'         => I18N::translate('Age ~%s', '__AGE__'),
+    ], JSON_THROW_ON_ERROR) ?>;
     window.fullDiagramData = <?= $tree_data ?>;
-    window.fullDiagramBaseUrl = <?= json_encode(route($module::ROUTE_NAME, ['tree' => $tree->name(), 'xref' => '__XREF__']), JSON_THROW_ON_ERROR) ?>;
+    window.fullDiagramBaseUrl = <?= json_encode(route($module::ROUTE_NAME, [
+        'tree' => $tree->name(),
+        'xref' => '__XREF__',
+        'ancestor_generations' => $ancestor_generations,
+        'descendant_generations' => $descendant_generations,
+        'show_siblings' => $show_siblings ? '1' : '0',
+    ]), JSON_THROW_ON_ERROR) ?>;
 </script>
 <script src="<?= e($javascript_url) ?>"></script>