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/so.svg

@@ -8,4 +8,4 @@
     <path fill="#40a6ff" d="M-128 0h768v512h-768z"/>
     <path fill="#fff" d="M336.5 381.2 254 327.7l-82.1 54 30.5-87.7-82-54.2L222 239l31.4-87.5 32.1 87.3 101.4.1-81.5 54.7z"/>
   </g>
-</svg>
+</svg>