Update dependency bootstrap to v5.0.0

Author: renovate-bot

frontend/package-lock.json

@@ -15,7 +15,7 @@
   },
   "dependencies": {
     "axios": "0.21.1",
-    "bootstrap": "5.0.0-beta3",
+    "bootstrap": "5.0.0",
     "core-js": "3.11.3",
     "vue": "3.0.11",
     "vue-router": "4.0.6",