Bump dot-prop from 4.2.0 to 4.2.1 in /app/server/static

Bumps [dot-prop](https://github.com/sindresorhus/dot-prop) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/sindresorhus/dot-prop/releases)
- [Commits](https://github.com/sindresorhus/dot-prop/compare/v4.2.0...v4.2.1)

Signed-off-by: dependabot[bot] <support@github.com>

app/server/static/package-lock.json

@@ -2124,9 +2124,9 @@
       }
     },
     "dot-prop": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/dot-prop/-/dot-prop-4.2.0.tgz",
-      "integrity": "sha512-tUMXrxlExSW6U2EXiiKGSBVdYgtV8qlHL+C10TsW4PURY/ic+eaysnSkwB4kA/mBlCyy/IKDJ+Lc3wbWeaXtuQ==",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/dot-prop/-/dot-prop-4.2.1.tgz",
+      "integrity": "sha512-l0p4+mIuJIua0mhxGoh4a+iNL9bmeK5DvnSVQa6T0OhrVmaEa1XScX5Etc673FePCJOArq/4Pa2cLGODUWTPOQ==",
       "requires": {
         "is-obj": "^1.0.0"
       }