Bump solid-devtools from 0.30.1 to 0.31.2 in /gui (#68)

Bumps [solid-devtools](https://github.com/thetarnav/solid-devtools) from 0.30.1 to 0.31.2.
- [Release notes](https://github.com/thetarnav/solid-devtools/releases)
- [Commits](https://github.com/thetarnav/solid-devtools/compare/solid-devtools@0.30.1...solid-devtools@0.31.2)

---
updated-dependencies:
- dependency-name: solid-devtools
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

gui/package.json

@@ -13,7 +13,7 @@
     "@types/node": "^22.10.2",
     "@types/plotly.js-dist-min": "^2.3.4",
     "prettier": "^3.4.2",
-    "solid-devtools": "^0.30.1",
+    "solid-devtools": "^0.31.2",
     "typescript": "^5.7.2",
     "vite": "^5.4.11",
     "vite-plugin-solid": "^2.11.0"