set-project-id fix

[adrians5j]

Two bugs in the project linking flow:

1. SetProjectIdService incorrectly matched <Project.*> elements nested inside conditional expressions when determining the JSX insertion point — now restricted to direct children of the outermost JSX fragment.

2. LinkProjectCommand was passing only projectId to setProjectId; it now passes the fully-qualified {orgId}/{projectId} composite ID.

// Before
await projectSdk.setProjectId(selectedProject.id, { force: true });

// After
await projectSdk.setProjectId(`${selectedOrg.id}/${selectedProject.id}`, { force: true });

[adrians5j]

@copilot update PR body

[Copilot]

@adrians5j I've opened a new pull request, #4971, to work on those changes. Once the pull request is ready, I'll request review from you.