install: add spicetify

Also use spicetify as default music player for toggles

install/spicetify.fish

@@ -0,0 +1,21 @@
+#!/bin/fish
+
+. (dirname (status filename))/util.fish
+
+install-deps git spicetify-cli
+
+set -l dist $C_DATA/spicetify
+
+# Clone repo
+update-repo spicetify $dist
+
+# Install systemd service
+setup-systemd-monitor spicetify $dist
+
+# Install theme files
+mkdir -p $CONFIG/spicetify/Themes/caelestia
+cp $dist/color.ini $CONFIG/spicetify/Themes/caelestia/color.ini
+cp $dist/user.css $CONFIG/spicetify/Themes/caelestia/user.css
+
+# Set spicetify theme
+spicetify config current_theme caelestia color_scheme caelestia