Merge branch 'staging' of https://github.com/AtCoder-NoviSteps/AtCoderNoviSteps into #2988

Author: KATO-Hiro

package.json

@@ -70,7 +70,7 @@
     "@mermaid-js/mermaid-cli": "11.12.0",
     "@popperjs/core": "2.11.8",
     "@prisma/client": "5.22.0",
-    "@testing-library/svelte": "5.3.0",
+    "@testing-library/svelte": "5.3.1",
     "@types/jest": "30.0.0",
     "@types/node": "25.0.3",
     "autoprefixer": "10.4.23",