fix(dashboard): replace all hardcoded emoji icons with Font Awesome

Fix inconsistent tab icon rendering by replacing hardcoded emoji icons
throughout the codebase with Font Awesome equivalents:

- distributeWidgetsByCategory(): Replace emojis in auto-layout tab creation
  - Status tab: 📊 → fa-solid fa-user
  - Scene tab: 🌍 → fa-solid fa-map
  - Social tab: 👥 → fa-solid fa-users
  - Inventory tab: 🎒 → fa-solid fa-bag-shopping

- applyDashboardConfig(): Update fallback icon from 📄 → fa-solid fa-file

These hardcoded emojis bypassed the migration system, causing icons to
disappear after operations like auto-arrange, reset layout, or page refresh.

Resolves inconsistent icon rendering across all dashboard operations.

style.css

@@ -1708,6 +1708,15 @@ body:has(.rpg-panel.rpg-position-left) #sheld {
     pointer-events: auto;
 }
 
+/* Prevent text selection in edit mode (especially important for mobile) */
+.edit-mode .rpg-widget-content {
+    user-select: none;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    -webkit-touch-callout: none; /* Prevent iOS callout menu */
+}
+
 /* Hide resize handles when widgets are locked */
 .widgets-locked .resize-handles {
     opacity: 0 !important;