Minor updates

Lively v1.0 onwards REQUIRE Windows 10 version 1903 or above.

What's new in v1.7.2.4:

• Removed default stream plugin due to bug reports.
  For live stream wallpapers it is recommended to use WebView2 (Edge) instead:
  https://github.com/rocksdanister/lively/wiki/Web-Guide-I-:-Cef#webview2-microsoft-edge
• Updated .NET Desktop Runtime 3.1.20.
  May prompt a system restart after update.
• Updated CefSharp browser.
  Includes a number of high priority Chromium security updates.
• Updated mpv player.
• Updated dependencies.
• Updated language translations.

Note:

• Lively v1.7.0.2 onwards requires updated Lively command-utility for continued functioning.