Fix stale data on host details page after subsequent navigations

[nulmete]

Related issue: Resolves #40408

Part of the root cause for this issue is this commit: 5136d40

In summary, I moved the QueryClient instantiation out of AppWrapper because it needs to be a stable reference. I realized this was necessary when manipulating react-query's cache as part of that work.
(I was debugging react-query's cache using getQueryData and it was always returning undefined for every entry -- that was fixed by doing what I described just above).

When QueryClient was re-created on each AppWrapper mount, refetchOnMount: false had no effect.. there was never cached data to serve, so useQuery always fetched on every navigation to the host details page.

After moving it out of AppWrapper, refetchOnMount: false works as expected and the cached (stale) data is served instead of refetching.

The fix removes the refetchOnMount: false, refetchOnReconnect: false, and refetchOnWindowFocus: false overrides, restoring react-query's defaults so data is refreshed on navigation, tab focus, and reconnect.

Checklist for submitter

• Changes file added for user-visible changes in changes/, orbit/changes/ or ee/fleetd-chrome/changes.
  See Changes files for more information.

Testing

• QA'd all new/changed functionality manually

Screen.Recording.2026-02-26.at.1.19.56.PM.mov

For unreleased bug fixes in a release candidate, one of:

• Confirmed that the fix is not expected to adversely impact load test results
• Alerted the release DRI if additional load testing is needed

[nulmete]

Removing refetchOnMount: false is the fix.

However, I decided to remove all refetchXXX: false props

IMO, it's good UX to have data sync after users had the tab opened for a long time and they come back (e.g. if they switched to another task).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 66.28%. Comparing base (277c7c3) to head (9ef3db9).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #40603   +/-   ##
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  Coverage   66.28%   66.28%           
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  Files        2466     2466           
  Lines      197534   197534           
  Branches     8638     8638           
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  Hits       130945   130945           
  Misses      54739    54739           
  Partials    11850    11850           

Flag	Coverage Δ
frontend	54.07% <ø> (ø)

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