feat: emoji picker in create dialogs; due date and priority right under a deepened task; no flicker on kanban drop

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/features/lists/SharedListsView.tsx

@@ -19,6 +19,7 @@ import { CountBadge } from '../../components/CountBadge';
 import { OriginBadge } from '../../components/OriginBadge';
 import { VoiceInputButton } from '../../components/VoiceInputButton';
 import { FormSheet } from '../../components/FormSheet';
+import { EmojiIconButton } from '../../components/EmojiIconButton';
 import { useMobileActions } from '../../context/MobileActionContext';
 
 interface SharedListsViewProps {
@@ -1203,14 +1204,7 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
             <div>
               <label className="block text-xs text-muted mb-1">Titel der Liste</label>
               <div className="flex items-center gap-1.5">
-                <input
-                  type="text"
-                  value={newListIcon}
-                  onChange={(e) => setNewListIcon(e.target.value)}
-                  maxLength={2}
-                  className="w-12 sm:w-10 h-11 sm:h-8 text-center input-field text-base sm:text-sm"
-                  title="Icon (Emoji)"
-                />
+                <EmojiIconButton value={newListIcon} onChange={setNewListIcon} fallback="🛒" />
                 <input
                   type="text"
                   value={newListTitle}