Bump MoonDeck to 1.6.16

[FrogTheFrog]

MoonDeck

• Fixed some errors regarding MobX patching - no real visible changes, but no more errors in console log.
• Bymped DFL version.

Checklist:

Developer Checklist

• I am the original author or an authorized maintainer of this plugin.
• I have abided by the licenses of the libraries I am utilizing, including attaching license notices where appropriate.

Plugin Checklist

• I have verified that my plugin works properly on the Stable and Beta update channels of SteamOS.
• I have verified my plugin is unique or alternatively provides more/alternative functionality to a similar plugin already on the store.

Plugin Backend Checklist

• No: I am using a custom backend other than Python.
• No: I am using a tool or software from a 3rd party FOSS project that does not have it's dependencies statically linked.
• No: I am using a custom binary that has all of it's dependencies statically linked.

Testing

• Tested on SteamOS Stable/Beta Update Channel.

[TrainDoctor]

Good for testing!

[dcuellar]

This did the trick for me. No more issues on prerelease build of moondeck. Thanks!