ui: fix loading problem on `jobs.index` route

[ChaiWithJai]

trafficstars

This PR addresses 14787 where jobs load slowly on jobs.index.

TODO: This will require updating the jobs.index page to no longer use client-side filtering, sorting and search and follow a pattern of pagination similar to the Evaluations page.

[github-actions[bot]]

Ember Asset Size action

As of fb70217

Files that got Bigger 🚨:

File	raw	gzip
nomad-ui.js	+2.93 kB	+808 B

Files that stayed the same size 🤷‍:

File	raw	gzip
vendor.js	0 B	0 B
nomad-ui.css	0 B	0 B
vendor.css	0 B	0 B

[philrenaud]

Resolved in https://github.com/hashicorp/nomad/pull/20452