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/cefta.svg

@@ -10,4 +10,4 @@
   <circle cx="320" cy="425.5" r="13.7" fill="#fc0"/>
   <circle cx="408.3" cy="249.8" r="13.7" fill="#fc0"/>
   <path fill="#fc0" d="m208.3 341.5 19.5-19.4 19.4 19.4-19.4 19.5zm204.7 21 19.5-19.5 19.5 19.5-19.5 19.4z"/>
-</svg>
+</svg>