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

clean all notifications if exit on linux

Allow nested ()/[] brackets in URLs (fixes #1346)

fixes #1329

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

* document /cmark in man page

* document Markdown extension in man page

* fix spoiler wording

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

---------

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

Fix some leftover menus from #1319

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

feat: hide all popup menus when press leftbutton on somewhere else

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

relates to #1231

Currently translated at 33.6% (316 of 940 strings)

Co-authored-by: NullPointerException <kigen745@gmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/uk/
Translation: Nheko/nheko

Currently translated at 28.1% (265 of 940 strings)

Co-authored-by: NullPointerException <kigen745@gmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/uk/
Translation: Nheko/nheko

Currently translated at 28.0% (264 of 940 strings)

Co-authored-by: NullPointerException <kigen745@gmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/uk/
Translation: Nheko/nheko

Currently translated at 27.2% (256 of 940 strings)

Co-authored-by: Priit Jõerüüt <nhkwlate@joeruut.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/uk/
Translation: Nheko/nheko

Currently translated at 100.0% (940 of 940 strings)

Co-authored-by: Priit Jõerüüt <nhkwlate@joeruut.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/et/
Translation: Nheko/nheko

Currently translated at 68.5% (644 of 940 strings)

Translated using Weblate (French)

Currently translated at 68.5% (644 of 940 strings)

Co-authored-by: CB <chb0@lavache.com>
Co-authored-by: Rick M. G <rick@gnous.eu>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fr/
Translation: Nheko/nheko

Merge Debian/Ubuntu Dependencies

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

update Zsh completion

- add new command line switches
- prevent duplication in argument descriptions
- load helper function before using it (fixes error with Zsh 5.9)