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/zw.svg

@@ -18,4 +18,4 @@
     <use xlink:href="#zw-b" width="100%" height="100%" x="-20.1" y="-.6"/>
     <path d="M88 145.3a1.7 1.8 0 0 0-1.6 1.7 1.7 1.8 0 1 0 3.5 0 1.7 1.8 0 0 0-1.9-1.7m.1.6a1.2 1.2 0 0 1 1.2 1.1 1.2 1.1 0 1 1-2.4 0 1.2 1.2 0 0 1 1.2-1.1"/>
   </g>
-</svg>
+</svg>