Changelog:

• Removed country flags from language selector
• Used clat instead of lat for latency measurements
• Improved translations in .desktop file
• Added Spanish (es_ES) localization
• Added Finnish (fi_FI) localization
• Added Traditional Chinese (zh_TW) localization
• Added Hindi (hi_IN) localization
• Added Dutch (nl_NL) localization
• Storage model name in benchmark reports
• BTRFS Copy-on-Write (CoW) detection and no-CoW directory support
• Enhanced error reporting for filesystem operations
• Icons to menu items
• Fixed tab order and UI spacing issues
• Fixed window icon display