Added queu and play queue item action and mutation

src/renderer/layouts/ActionBar.vue

@@ -33,7 +33,7 @@ export default {
 }
 </script>
 
-<style lang="sass" scoped>
+<style lang="sass">
 section.action-bar
   display: flex
   align-items: center

src/renderer/store/modules/Player.js

@@ -1,28 +1,38 @@
 const state = {
   fullscreen_mode: false,
-  currently_playing: {
+  currently_playing: 0,
+  queue: [
+    {
       id: 8,
       title: 'Yellow',
       artist: 'Rich Brian',
       artwork: '/static/demo/yellow.jpeg',
       stream: '/static/demo/music.mp3'
     }
+  ]
 }
 
 const getters = {
   fullscreenStatus: (state) => state.fullscreen_mode,
-  currentlyPlaying: (state) => state.currently_playing
+  currentlyPlaying: (state) => state.currently_playing,
+  playerQueue: (state) => state.queue
 }
 
 const mutations = {
   TOGGLE_FULLSCREEN (state) {
     state.fullscreen_mode = !state.fullscreen_mode
+  },
+  PLAY_QUEUE_ITEM (state, index) {
+    state.currently_playing = index
   }
 }
 
 const actions = {
   toggleFullscreenStatus ({ commit }) {
     commit('TOGGLE_FULLSCREEN')
+  },
+  playQueueItem ({ commit }, index) {
+    commit('PLAY_QUEUE_ITEM', index)
   }
 }