[DevTools] Don't capture durations for disconnected subtrees when profiling

[hoxyq]

After #34089, when updating (possibly, mounting) inside disconnected subtree, we don't record this as an operation. This only happens during reconnect. The issue is that recordProfilingDurations() can be called, which diffs tree base duration and reports it to the Frontend:

react/packages/react-devtools-shared/src/backend/fiber/renderer.js

Lines 4506 to 4521 in 65db100

	if (isProfiling) {
	// It's important to update treeBaseDuration even if the current Fiber did not render,
	// because it's possible that one of its descendants did.
	if (
	prevFiber == null ||
	treeBaseDuration !== prevFiber.treeBaseDuration
	) {
	// Tree base duration updates are included in the operations typed array.
	// So we have to convert them from milliseconds to microseconds so we can send them as ints.
	const convertedTreeBaseDuration = Math.floor(
	(treeBaseDuration || 0) * 1000,
	);
	pushOperation(TREE_OPERATION_UPDATE_TREE_BASE_DURATION);
	pushOperation(id);
	pushOperation(convertedTreeBaseDuration);
	}

This operation can be recorded before the "Add" operation, and it will not be resolved properly on the Frontend side.

Before the fix:

commit tree › Suspense › should handle transitioning from fallback back to content during profiling

    Could not clone the node: commit tree does not contain fiber "5". This is a bug in React DevTools.

      162 |     const existingNode = nodes.get(id);
      163 |     if (existingNode == null) {
    > 164 |       throw new Error(
          |             ^
      165 |         `Could not clone the node: commit tree does not contain fiber "${id}". This is a bug in React DevTools.`,
      166 |       );
      167 |     }

      at getClonedNode (packages/react-devtools-shared/src/devtools/views/Profiler/CommitTreeBuilder.js:164:13)
      at updateTree (packages/react-devtools-shared/src/devtools/views/Profiler/CommitTreeBuilder.js:348:24)
      at getCommitTree (packages/react-devtools-shared/src/devtools/views/Profiler/CommitTreeBuilder.js:112:20)
      at ProfilingCache.getCommitTree (packages/react-devtools-shared/src/devtools/ProfilingCache.js:40:46)
      at Object.<anonymous> (packages/react-devtools-shared/src/__tests__/profilingCommitTreeBuilder-test.js:257:44)

[afurm]

LGTM. Skipping profiling duration capture for disconnected subtrees seems right, and the added Suspense coverage is a good regression test (fallback → primary transition during profiling).

No other nits from me.