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/bd.svg

@@ -1,4 +1,4 @@
 <svg xmlns="http://www.w3.org/2000/svg" id="flag-icons-bd" viewBox="0 0 640 480">
   <path fill="#006a4e" d="M0 0h640v480H0z"/>
   <circle cx="280" cy="240" r="160" fill="#f42a41"/>
-</svg>
+</svg>