Bump xterm from 5.2.1 to 5.3.0 in /frontend (#962)

Bumps [xterm](https://github.com/xtermjs/xterm.js) from 5.2.1 to 5.3.0.
- [Release notes](https://github.com/xtermjs/xterm.js/releases)
- [Commits](xtermjs/xterm.js@5.2.1...5.3.0)

---
updated-dependencies:
- dependency-name: xterm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

frontend/package.json

@@ -54,6 +54,6 @@
     "react-dropzone": "^14.2.2",
     "react-markdown": "^9.0.0",
     "react-router-dom": "^6.14.2",
-    "xterm": "^5.0.0"
+    "xterm": "^5.3.0"
   }
 }