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/mx.svg

@@ -379,4 +379,4 @@
   <path fill="#f9c83a" d="m294.6 195 .4.3h-.5z"/>
   <path fill="#8f4620" d="m295 195.3-.7.1c-.2 0 .2-.2.2-.2l.4.1z"/>
   <path fill="#977c2e" d="M301 239.1s.3 0 .5-.3-.1.4-.1.4l-.3.1-.2-.2z"/>
-</svg>
+</svg>