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/kp.svg

@@ -12,4 +12,4 @@
     <path fill="#fff" d="M328.5 256c0 63.5-53 115-118.6 115S91.3 319.5 91.3 256s53-114.8 118.6-114.8 118.6 51.4 118.6 114.9z"/>
     <path fill="#c40000" d="m175.8 270.6-57-40.7 71-.2 22.7-66.4 21.1 66.1 71-.4-57.9 41.2 21.3 66.1-57-40.7-58 41.3z"/>
   </g>
-</svg>
+</svg>