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/ua-Ternopil.svg

@@ -771,4 +771,4 @@
    </g>
    <rect id="rect1833" x="0" y="0" width="1500" height="250" style="fill:#0879b6;" />
    <rect id="rect1835" x="0" y="750" width="1500" height="250" style="fill:#fff500;" />
-</svg>
+</svg>