Settings v2026.01.23.3

Fixes

• Installer sudo prompt: Fixed issue where installer would hang at "Updating package lists" on Linux due to sudo password prompt being blocked by background execution
• UI alignment: Fixed box drawing alignment issues in progress display header

Changes

• Added validate_sudo() function to obtain sudo credentials before any background commands run
• Pre-validate sudo on Linux/WSL before UI rendering starts
• Dynamic padding calculation for component counter [n/m] to ensure proper alignment