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/ir.svg

@@ -216,4 +216,4 @@
       <path d="m256.4 331.6 7.8-9 1.1-120.1-9.3-8.2-9.3 7.8 1.9 121z"/>
     </g>
   </g>
-</svg>
+</svg>