feat(fmt): add command to format dae config files

[mnixry]

Background

Add a command-line formatter for dae config DSL.

Checklist

• The Pull Request has been fully tested
• There's an entry in the CHANGELOGS
• There is a user-facing docs PR against https://github.com/daeuniverse/dae

Full Changelogs

• Update ANTLR4 generated parser path, ref: Change comment and whitespace handling to channel(HIDDEN) dae-config-antlr4#1
• Implement basic formatter for dae config DSL, battle-testing needed.
• Add fuzz test to config parser and formatter, which ensures it never panics and causes inconsistency.

Issue Reference

Closes #[issue number]

Test Result