fix: sync telemetry logger enable states

[suzunn]

Problem

TelemetryLogger initialized isUsageEnabled and isErrorsEnabled to true regardless of the current telemetry setting. That means extensions can see telemetry as enabled even when env.isTelemetryEnabled is false, which can cause telemetry senders to initialize unnecessarily.

Solution

I updated TelemetryLogger so its usage and error enable states mirror the current telemetry-enabled state when a logger is created and whenever telemetry is toggled. I also added focused coverage for the initial disabled state, toggling back and forth, and onDidChangeEnableStates notifications.

Fixes #17592.

Testing

• npx eslint packages\plugin-ext\src\plugin\telemetry-ext.ts packages\plugin-ext\src\plugin\telemetry-ext.spec.ts
• git diff --check origin/master...HEAD

I also tried to run the local compile/test path, but this Windows environment cannot complete the repository setup cleanly: npm ci fails while building the native drivelist dependency because no Visual Studio C++ workload is installed, and the fallback install leaves some generated Theia workspace references unavailable for package compilation.

[ndoschek]

Thanks for the fix, @suzunn!

Two quick housekeeping items first:

1. The ECA check is failing. Could you sign the Eclipse Contributor Agreement and make sure the email on your commits matches. Details here: https://github.com/eclipse-theia/theia/blob/master/CONTRIBUTING.md#eclipse-contributor-agreement
2. Could you also update the PR description to follow our PR template? We rely on the sections for our automated changelog generation. Thanks!

The approach itself looks good and I can verify the issue is fixed using the reproduction steps from the linked issue. 👍

About the setup issues you ran into on Windows, this page might help: https://github.com/eclipse-theia/theia/blob/master/doc/Developing.md#windows. Heads up though, that section is a bit outdated (it still mentions msvs_version 2017); for Node 22 for example you'll want at least Visual Studio 2022 Build Tools with the C++ workload. I'll take care of updating this part! (edit: see also here for the wip: #17752)

[ndoschek]

You can put yourself/your company as copyright holder here.