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/pk.svg

@@ -12,4 +12,4 @@
       <path d="M415.4 306a121 121 0 0 1-161.3 59.4 122 122 0 0 1-59.5-162.1A119 119 0 0 1 266 139a156 156 0 0 0-11.8 10.9A112.3 112.3 0 0 0 415.5 306z"/>
     </g>
   </g>
-</svg>
+</svg>