Add nvim version check berfore installing

[koibtw]

Type of Change

• [x] Bug fix
• [x] Hotfix

Description

Issues / other PRs related

• Resolves #578

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.
• [x] My changes generate no errors/warnings/merge conflicts.