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/lk.svg

@@ -19,4 +19,4 @@
       <path fill="#000001" d="M412.4 248.6c-1-1-.2-1.2 4.3-1.3 5.6-.1 9-1 13-3.6 3.2-2 4.1-1.6 1 .5-2.7 2-7 3.4-11.3 3.8l-5.1.7q-1.4.3-2-.1z"/>
     </g>
   </g>
-</svg>
+</svg>