Recommend using vitest.workspace if too many vitest.config files are found

[sheremet-va]

Clear and concise description of the problem

The recommended way to use Vitest in a monorepo is to use Vitest Workspace feature.

Suggested solution

If we find too many vitest config files (3 or more), we should show a notification with a button that creates a workspace file. There should also be a way to disable this notification in case this is a desirable behavior.

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.