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/bi.svg

@@ -12,4 +12,4 @@
     <path fill="#fff" d="M-178 0v47.7L599.7 512h79.9v-47.7L-98.1 0z"/>
     <path fill="#cf0921" stroke="#18b637" stroke-width="3.9" d="m280 200.2-19.3.3-10 16.4-9.9-16.4-19.2-.4 9.3-16.9-9.2-16.8 19.2-.4 10-16.4 9.9 16.5 19.2.4-9.3 16.8zm-64.6 111.6-19.2.3-10 16.4-9.9-16.4-19.2-.4 9.3-16.9-9.2-16.8 19.2-.4 10-16.4 9.9 16.5 19.2.4-9.3 16.8zm130.6 0-19.2.3-10 16.4-10-16.4-19.1-.4 9.3-16.9-9.3-16.8 19.2-.4 10-16.4 10 16.5 19.2.4-9.4 16.8z"/>
   </g>
-</svg>
+</svg>