Make mpv optional

.SRCINFO

@@ -1,12 +1,12 @@
 pkgbase = feishin-bin
 	pkgdesc = Rewrite of Sonixd
 	pkgver = 0.7.1
-	pkgrel = 1
+	pkgrel = 2
 	url = https://github.com/jeffvli/feishin
 	arch = x86_64
 	arch = aarch64
 	license = GPL3
-	depends = mpv
+	optdepends = mpv: Alternative audio backend
 	provides = feishin
 	conflicts = feishin
 	source = feishin.desktop

PKGBUILD

@@ -3,11 +3,11 @@
 pkgname=feishin-bin
 pkgdesc='Rewrite of Sonixd'
 pkgver=0.7.1
-pkgrel=1
+pkgrel=2
 arch=('x86_64' 'aarch64')
 url='https://github.com/jeffvli/feishin'
 license=('GPL3')
-depends=('mpv') # TODO check node requirements
+optdepends=('mpv: Alternative audio backend')
 provides=("${pkgname%-bin}")
 conflicts=("${pkgname%-bin}")
 _filename=Feishin-${pkgver//_/-}-linux