ui: bump js-routes in /server/src/main/webapp/WEB-INF/rails

Bumps [js-routes](https://github.com/railsware/js-routes) from 1.4.14 to 2.2.4.
- [Release notes](https://github.com/railsware/js-routes/releases)
- [Changelog](https://github.com/railsware/js-routes/blob/master/CHANGELOG.md)
- [Commits](railsware/js-routes@v1.4.14...v2.2.4)

---
updated-dependencies:
- dependency-name: js-routes
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

server/src/main/webapp/WEB-INF/rails/Gemfile.lock

@@ -70,7 +70,7 @@ GEM
       activesupport (>= 5.0)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
-    js-routes (1.4.14)
+    js-routes (2.2.4)
       railties (>= 4)
     loofah (2.18.0)
       crass (~> 1.0.2)