Release v1.0.0-alpha.21

• Added: Alt + H/J/K/L for 2D shifting
• Added: Search result ranker based on title match
• Added: Restore caret position on page reload
• Changed: Node 16 to 18 upgrade
• Changed: Replaced fs-extra with Node fs API
• Changed: Replaced axios with Node 18 native fetch API
• Fixed: URL was not case sensitive
• Chore: Replaced npm-run-all with concurrenly due to discontinued maintenance
• Chore: Updated dependencies