* dialogs - move dialog handling to main side

* dialogs - adopt windows dialogs methods in main

* dialogs - use async dialog API and queue up dialogs on the main side

Logs should be in the output panel

- Clean up creating input
- Clean up showing channels

Fixes #16075

- Implement Buffered output channel and file output channel in output services
- Allow to register a file output channel
- Register log files output channels