[WIP] Option to disable annoying "Using configured .NET path" output

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original issue description:

Is your feature request related to a problem? Please describe.

Every single time I start VS Code, the .NET install tool spams out "Using configured .NET path"... to the console.

I already know, and it's just spam I have to close before I start working.

Also, the "Do Not Disturb" setting does not seem to work to stop this message from coming through.

A clear and concise description of what you want to happen. Include any alternative solutions you've considered.

I would like a way to disable this message, so I don't have to close a pointless panel every time I start work. It's annoying.

Describe the solution you'd like

Maybe some kind of config setting that disables this message or maybe the system just remembers the previous configuration and doesn't show it if it's the same as the last run.

Additional context

No response

Fixes #2027.

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