sysutils/plasma5-systemsettings: Depend on another gstreamer plugin.

Some of video previews are using Theora codec.

Approved by:	tcberner
Sponsored by:	Serenity Cybersecurity, LLC

sysutils/plasma5-systemsettings/Makefile

 PORTNAME=	systemsettings
 DISTVERSION=	${KDE_PLASMA_VERSION}
+PORTREVISION=	1
 CATEGORIES=	sysutils kde kde-plasma
 
 MAINTAINER=	kde@FreeBSD.org
@@ -8,7 +9,7 @@ WWW=		https://www.kde.org/plasma-desktop
 
 USES=		cmake compiler:c++11-lib gettext gstreamer kde:5 qt:5 tar:xz \
 		xorg
-USE_GSTREAMER=	curl openh264
+USE_GSTREAMER=	curl openh264 theora
 USE_KDE=	activities activities-stats auth codecs completion config \
 		configwidgets coreaddons crash dbusaddons guiaddons i18n \
 		iconthemes itemmodels itemviews jobwidgets js kcmutils \