Add version checking & config migration for Alacritty

[koibtw]

Add a version check & config migration for Alacritty

Type of Change

• [x] New feature
• [x] Bug fix

Description

Merge PR #66 on dwm-titus first.

Alacritty supports TOML config from version 0.13.0 and above. Changelog Ref #364

Auto migrate from YAML to TOML for version newer or equal to 0.13.0 of alacritty

Issue related to PR

• Resolves #364

Checklist

• [x] My code adheres to the coding and style guidelines of the project.
• [x] I have performed a self-review of my own code.
• [x] I have commented my code, particularly in hard-to-understand areas.
• [ ] I have made corresponding changes to the documentation.
• [x] My changes generate no errors/warnings/merge conflicts.