feat: real-time updates

[karanBRAVO]

Describe the PR

As discussed on volcano-slack, I have implemented the real-time update feature.

• Now, we do not have to refresh button(s) again and again to see the changes :)
• This PR ensures that Job, Pods, Queues, Namespaces are updated in real-time.
• Along with that, I also update the Age of the Pods.

Additional Context

You can test this PR by creating jobs, pods, queues, namespaces using kubectl and see the real-time updates on the UI.

apiVersion: v1
kind: Namespace
metadata:
  name: my-namespace

kubectl apply -f <your-file-name>.yaml

Also try deleting it

kubectl delete namespace my-namespace

[volcano-sh-bot]

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[karanBRAVO]

/assign @kevin-wangzefeng
/assign @Monokaix

[karanBRAVO]

Hello @Monokaix @JesseStutler @de6p ,
I would love to get feedback on this PR.
Thanks
Karan Yadav

[RONAK-AI647]

While the PR adds real-time updates globally, but it still offer manual refresh buttons on each tab (Jobs, Queues, Pods) for fallback, in case WebSocket or polling fails ??? @karanBRAVO

[karanBRAVO]

Ya, that's true

Reason

• Reliability: Real-time features can fail silently (e.g., due to network issues), so fallback refresh buttons ensure users can still get up-to-date information.

• User control: Gives users the power to manually update if something looks stale.

• Progressive enhancement: Adds features without removing existing functionality that users may rely on.

And by the way, I am using Server Sent Events in this case.
short-desc - it is used when we only one-way connection and in most cases from server to client.

Hope that this answer's your query :)

[RONAK-AI647]

yes , that's cool @karanBRAVO

[Monokaix]

I think we can move this forward after @Shrutim1505 finish her work.

[karanBRAVO]

I think we can move this forward after @Shrutim1505 finish her work.

ok