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-1962–1967.svg

@@ -1140,4 +1140,4 @@
                 d="m913.36 220.2-82.93.01-.032 135.48c.248 53.976 64.105 75.473 82.978 81.565 18.872-6.09 82.733-27.587 82.981-81.566l-.031-135.478-82.934-.01z" />
         </g>
     </g>
-</svg>
+</svg>