Clean up SVG files and update logos

- Removed unnecessary XML and DOCTYPE declarations from SVG files.
- Eliminated comments within SVG files for cleaner output.
- Trimmed leading and trailing whitespace from SVG content.
- Ensured all SVG files end with a newline character.
- Updated multiple logo SVG files including WireGuard, Wise, WOG, Yahoo, and others to conform to the new standards.
- Enhanced the update-data.js script to automate the cleanup process for SVG files.

public/images/flags/vc.svg

@@ -5,4 +5,4 @@
     <path fill="#0058aa" d="M0 0h150v480H0z"/>
     <path fill="#199a00" d="m259.3 130-46.4 71.3 44.7 74.4 43.8-73.7zm121.2 0-46.3 71.3 44.7 74.4 43.8-73.7zm-61.2 97.3-46.4 71.4 44.8 74.4 43.8-73.7-42.2-72z"/>
   </g>
-</svg>
+</svg>