build(deps-dev): bump marked and @types/marked in /tabby-settings

Bumps [marked](https://github.com/markedjs/marked) and [@types/marked](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/marked). These dependencies needed to be updated together.

Updates `marked` from 4.2.12 to 5.1.2
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](https://github.com/markedjs/marked/compare/v4.2.12...v5.1.2)

Updates `@types/marked` from 4.0.8 to 5.0.1
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/marked)

---
updated-dependencies:
- dependency-name: marked
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: "@types/marked"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

tabby-settings/package.json

@@ -18,8 +18,8 @@
   "author": "Eugene Pankov",
   "license": "MIT",
   "devDependencies": {
-    "@types/marked": "^4.0.8",
-    "marked": "^4.2.12",
+    "@types/marked": "^5.0.1",
+    "marked": "^5.1.2",
     "ngx-infinite-scroll": "^16"
   },
   "peerDependencies": {