bump ts-fsrs to 4.0.2

Author: ishiko732

package.json

@@ -55,7 +55,7 @@
     "sharp": "^0.33.4",
     "tailwind-merge": "^2.3.0",
     "tailwindcss-animate": "^1.0.7",
-    "ts-fsrs": "^4.0.1",
+    "ts-fsrs": "^4.0.2",
     "vaul": "^0.9.1",
     "zod": "^3.23.8"
   },