GStreamer 1.22 merged the videoscale plugin into the videoconvertscale
plugin. So we should check if the Element is still loadable instead of
checking the plugin name.

fixes #1352

fixes #1350

fixes #1329

Log: maek closeAllNotification on all platform, move
closeAllNotification action to aboutToQuit

This should match what people expect from a chat application much
better. The biggest reason not to do this, is because some people might
paste markdown documents. For those people there is now a /cmark
command, which disables most of our extensions to cmark, including the
newline behaviour. There is a long discussion on the Fediverse and on
Github linked below.

Mastodon https://fosstodon.org/@deepbluev7/109771668066978726
fixes #757

by always sending as formatted when a newline is in the body

relates to #1231

Log: according to the bug on https://bugreports.qt.io/browse/QTBUG-83972, The menu will always stay if not click one of the item. So I try to make a hack for it, wait qt solve it someday

Jason Volk authored 2 years ago and Nicolas Werner committed 2 years ago

Cause: Request button pressed in user settings.

Result: Request body is jsNull; sendToDevice requires jsObject.

I have no idea, if this is our fault or not, but Jason traced it back to
the consteval on the {fmt} format string constructor.

Specifically when a consteval constructor call happens in the statement,
the destructor call is moved to the end of the block. Inside the switch
statement that means, the destructor is called multiple times, which
corrupts the use count and crashes Nheko because of a double free.

I am assuming this is a bug in clang, but this will need to be
investigated more.

fixes #1292

* Pause ParticleEmitter when not in use

* Use timer instead to pause particle system

fixes #1245
closes #1246