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/tn.svg

@@ -1,4 +1,4 @@
 <svg xmlns="http://www.w3.org/2000/svg" id="flag-icons-tn" viewBox="0 0 640 480">
   <path fill="#e70013" d="M0 0h640v480H0z"/>
   <path fill="#fff" d="M320 119.2a1 1 0 0 0-1 240.3 1 1 0 0 0 1-240.3M392 293a90 90 0 1 1 0-107 72 72 0 1 0 0 107m-4.7-21.7-37.4-12.1-23.1 31.8v-39.3l-37.4-12.2 37.4-12.2V188l23.1 31.8 37.4-12.1-23.1 31.8z"/>
-</svg>
+</svg>