frontend: ResourceTable: Preserve column filter state

[skoeva]

This change saves the table column filters to localStorage so that they may persist through navigation and reloads.

Fixes: #2554

Testing

• Navigate to any resource page in Headlamp (i.e. Pods)
• Set a filter in the table
• Restart the page or navigate away and back to the page and ensure that the filter state persists

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: skoeva
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[sniok]

There's something wrong here, when trying to type some characters are ignored or repeated

Here I'm trying to type 123456789 into the column filter:

Recording.2025-06-13.172131.mp4

I think if you put columnFilters into initialState instead of state it should work

[sniok]

thanks for updating the PR, left one comment above

[skoeva]

@sniok The issue with putting it in initialState is that the UI won't update in real time, only after refreshing the page; is that better?

[sniok]

The issue with putting it in initialState is that the UI won't update in real time, only after refreshing the page; is that better?

yeah you're right, disregard my suggestion

[skoeva]

Setting to draft, will close if there is no more activity on the issue