✨ feat(player): add seek bar and position display to control playback position

styles/player.css

@@ -22,7 +22,7 @@
 }
 
 #outer-player-box {
-  min-height: 100px;
+  min-height: 130px;
   min-width: 363px;
   border-radius: 10px;
   margin: 0 6px;
@@ -125,3 +125,27 @@
   margin-left: 12px;
   border-radius: 5px;
 }
+
+#seek-bar slider {
+  background-image: none;
+  background-color: transparent;
+  padding: 2px;
+}
+
+#seek-bar scale {
+  background-color: transparent;
+  margin-top: 10px;
+  border-radius: 20px;
+}
+
+#seek-bar trough {
+  min-width: 10px;
+  border-radius: 99px;
+  background-color: alpha(#666, 0.5);
+  border: 1px solid alpha(#444, 0.3);
+}
+
+#seek-bar highlight {
+  background: alpha(#fff, 0.8);
+  border-radius: 99px;
+}