Add shaders optdepend

.SRCINFO

@@ -1,7 +1,7 @@
 pkgbase = jellyfin-mpv-shim
 	pkgdesc = Cast media from Jellyfin Mobile and Web apps to MPV. (Unofficial)
 	pkgver = 1.6.0
-	pkgrel = 1
+	pkgrel = 2
 	url = https://github.com/iwalton3/jellyfin-mpv-shim
 	arch = any
 	license = MIT
@@ -18,6 +18,7 @@ pkgbase = jellyfin-mpv-shim
 	optdepends = python-werkzeug: desktop client support
 	optdepends = python-flask: desktop client support
 	optdepends = svp: SmoothVideo Project server
+	optdepends = mpv-shim-default-shaders: default shader pack
 	source = jellyfin-mpv-shim-1.6.0.tar.gz::https://github.com/iwalton3/jellyfin-mpv-shim/archive/v1.6.0.tar.gz
 	sha256sums = 5adf171ee7f5e76a84ab65243e0043a9d3cbb37baf0964be58af94f534bc62a7
 

PKGBUILD

@@ -2,7 +2,7 @@
 
 pkgname=jellyfin-mpv-shim
 pkgver='1.6.0'
-pkgrel=1
+pkgrel=2
 pkgdesc="Cast media from Jellyfin Mobile and Web apps to MPV. (Unofficial)"
 arch=('any')
 url='https://github.com/iwalton3/jellyfin-mpv-shim'
@@ -14,7 +14,8 @@ optdepends=('python-pystray: systray support'
 	'python-pywebview>=3.3.1: desktop client and display mirroring support'
 	'python-werkzeug: desktop client support'
 	'python-flask: desktop client support'
-	'svp: SmoothVideo Project server')
+	'svp: SmoothVideo Project server'
+	'mpv-shim-default-shaders: default shader pack')
 source=("$pkgname-$pkgver.tar.gz::https://github.com/iwalton3/jellyfin-mpv-shim/archive/v$pkgver.tar.gz")
 sha256sums=('5adf171ee7f5e76a84ab65243e0043a9d3cbb37baf0964be58af94f534bc62a7')
 
@@ -27,4 +28,6 @@ package() {
 	cd "${srcdir}/jellyfin-mpv-shim-${pkgver}"
 	install -Dm 644 "LICENSE.md" "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
 	python setup.py install --root="$pkgdir/" --optimize=1 --skip-build
+	cd "${pkgdir}"
+	ln -s "/usr/share/mpv-shim-default-shaders" "usr/lib/$(ls usr/lib/ | grep python)/site-packages/jellyfin_mpv_shim/default_shader_pack"
 }