Revert "Bump bootstrap from 4.6.2 to 5.0.0 in /hwproj.front (#631)"

This reverts commit de6e649.

Author: DedSec256

hwproj.front/package-lock.json

@@ -27,7 +27,7 @@
     "@uiw/react-markdown-preview": "4.2.2",
     "@uiw/react-md-editor": "3.25.6",
     "axios": "^0.30.2",
-    "bootstrap": "^5.0.0",
+    "bootstrap": "^4.3.1",
     "classnames": "^2.3.1",
     "color-util": "^2.2.3",
     "date-fns": "^2.23.0",