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/ag.svg

@@ -11,4 +11,4 @@
     <path fill="#ce1126" d="M603 .1V512H261.6L603 0zM-79.7.1V512h341.3L-79.7 0z"/>
     <path fill="#fcd116" d="M440.4 203.3 364 184l64.9-49-79.7 11.4 41-69.5-70.7 41L332.3 37l-47.9 63.8-19.3-74-21.7 76.3-47.8-65 13.7 83.2L138.5 78l41 69.5-77.4-12.5 63.8 47.8L86 203.3z"/>
   </g>
-</svg>
+</svg>