Release v6.8.2.1

• Bundle in the executable the missing files android_version.json and android_devices.json otherwise patching with KernelSU won't detect your Pixel as Pixel device.
• Add back Magisk Alpha install option, thanks to pull request from @hldr4
• Make Magisk install window resizable.
• Add right click option on the selected Magisk to download in case you just want it downloaded and not installed.
• Update all old forum.xda-developers.com links to xdaforums.com
• Make Pif Manager work without a device being connected (obviously for props / pifs management and not for updating / testing pifs).
• Typo fixes and other minor improvements.