Support onLog hook in dev

[sapphi-red]

Description

Currently onLog hook is not supported in dev.
Having this hook would make it more easier to filter warning out or changing the severity of some logs.

Reproduction: https://stackblitz.com/edit/vitejs-vite-yug7cnb3?file=vite.config.js&terminal=dev

Suggested solution

Implement them.

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.