Flexbox Froggy self-hosted mirror

Original project: https://github.com/thomaspark/flexboxfroggy
Author: Thomas Park

Code is released under the MIT License. See LICENSE.
Images are released under Creative Commons Attribution 3.0:
https://creativecommons.org/licenses/by/3.0/legalcode.txt

Changes in this mirror:
- Removed the upstream Google Analytics and Google AdSense integrations.
- Updated social preview URLs for froggy.dangzhangx.com.
- Improved Simplified Chinese locale detection and made it the fallback locale.

The Flexbox Froggy name and artwork belong to their respective creators.