Add Plate Swap Puzzle with full functionality and attribution

src/components/InteractiveIndex.tsx

@@ -82,6 +82,15 @@ const allInteractives: Interactive[] = [
     theme: 'Games',
     dateAdded: '2024-03-15'
   },
+  {
+    id: 'plate-swap',
+    title: 'The Plate Swap Puzzle',
+    description: 'Arrange plates around a circular table so each person has their own plate. A challenging permutation puzzle!',
+    tags: ['logic', 'permutation', 'strategy', 'puzzle', 'cycles'],
+    path: '/puzzles/plate-swap',
+    theme: 'Puzzles',
+    dateAdded: '2024-12-19'
+  },
   {
     id: 'knights-puzzle',
     title: 'Knights Exchange Puzzle',