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/cf.svg

@@ -12,4 +12,4 @@
     <path fill="red" d="M247.7 32.5h119.9V512H247.7z"/>
     <path fill="#ff0" d="m99.3 137.7-31.5-21.8-31.3 22L47.4 101 16.9 78l38.2-1 12.5-36.3L80.3 77l38.1.7L88.2 101"/>
   </g>
-</svg>
+</svg>