Pre-seeded actions from userDefaults.json should be removed after adding IDs

[lhecker]

Windows Terminal version

1.21.1094.0

Windows build number

10.0.26092.0

Other Software

No response

Steps to reproduce

• Launch the latest Canary
• Open settings.json

Expected Behavior

• The 4 actions we put into every user's settings.json should get converted to new keybindings (just "keys" and "id", no "type", etc.)
• The existing settings.json files need to be cleaned up

Actual Behavior

Settings file contains "User.copy.644BA8F2", etc.