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/az.svg

@@ -5,4 +5,4 @@
   <circle cx="304" cy="240" r="72" fill="#fff"/>
   <circle cx="320" cy="240" r="60" fill="#ed2939"/>
   <path fill="#fff" d="m384 200 7.7 21.5 20.6-9.8-9.8 20.7L424 240l-21.5 7.7 9.8 20.6-20.6-9.8L384 280l-7.7-21.5-20.6 9.8 9.8-20.6L344 240l21.5-7.7-9.8-20.6 20.6 9.8z"/>
-</svg>
+</svg>