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/ug.svg

@@ -27,4 +27,4 @@
     <path fill="none" stroke="#fff" stroke-linecap="round" stroke-width=".9" d="M228.4 209.9s10.5-2.6 11.8-2.2"/>
     <path fill="#de3908" fill-rule="evenodd" d="M-128 426.7h768V512h-768z"/>
   </g>
-</svg>
+</svg>