Description

This is a follow up on #1539 to implement a Default instance for ModeConfig that has default values as described in #1539:

[mode]

[mode.clients]
enabled = true
refresh = true
misbehaviour = true

[mode.connections]
enabled = false

[mode.channels]
enabled = false

[mode.packets]
enabled = true
clear_interval = 100
clear_on_start = true
filter = false
tx_confirmation = true

The use of the new default values are tested in #1521.

For contributor use:

• Added a changelog entry, using unclog.
• If applicable: Unit tests written, added test to CI.
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Updated relevant documentation (docs/) and code comments.
• Re-reviewed Files changed in the Github PR explorer.