Release v6.9.2.0

• Add a new experimental feature to downgrade without a wipe and potentially switch from Beta to Stable without a wipe (untested).
  Credit to @tbalden for the discovery and @capntrips for the details of the process.
• Select any img file and get additional image info.
• #190 fix, scrcpy launch improvement.
• Improved Menu to disabled advanced features when it's not enabled in the settings. (Previously only other GUI elements were hidden or disabled).
• If KernelSU or APatch is installed, report their version as part of device details.
• Improved logging.
• Improved santization.
• Other minor improvements and added stability.