Update dependency msw to v2.14.6

[johnsimons]

As per the instructions in #2983

As part of this PR, the "selecting history period updates graph values" tests were also simplified. There were previously six near-identical tests, one per history period (1m, 5m, 10m, 15m, 30m, 1h). Since the component uses a single watch on the history period store with no per-period branching logic, a single representative test is sufficient to cover this behaviour.

The 1-minute test had also been silently broken: period 1 is the default, so navigating to the endpoint page and then "selecting" 1 minute was a no-op — the store value never changed, the watcher never fired, and no re-fetch occurred. The fix was a test issue only; the application correctly avoids re-fetching when the period hasn't changed.

Reviewer Checklist

• Components are broken down into sensible and maintainable sub-components.
• Styles are scoped to the component using it. If multiple components need to share CSS, then a .css file is created containing the shared CSS and imported into component scoped style sections.
• Naming is consistent with existing code, and adequately describes the component or function being introduced
• Only functions utilizing Vue state or lifecycle hooks are named as composables (i.e. starting with 'use');
• No module-level state is being introduced. If so, request the PR author to move the state to the corresponding Pinia store.

[johnsimons]

There were previously six near-identical tests, one per history period (1m, 5m, 10m, 15m, 30m, 1h). Since the component uses a single watch on the history period store with no per-period branching logic, a single representative test is sufficient to cover this behaviour.

The 1-minute test had also been silently broken: period 1 is the default, so navigating to the endpoint page and then "selecting" 1 minute was a no-op — the store value never changed, the watcher never fired, and no re-fetch occurred. The fix was a test issue only; the application correctly avoids re-fetching when the period hasn't changed.