Bug fixes

• Add missing padding below the list of action items in settings
• Use more descriptive string for when the user does not want to install the language server
• Add missing trailing icon for input errors
• Use supportingText error message instead of toast()
• Fix duplicate preference group

Features

• Allow multiple file extensions per external LSP entry
• Better error detection for invalid ports in LSP settings

Chore

• Improve readability of LSP connection
• Remove unused Loading file