Fixing Slow down of Playlists mentioned @ #20

As mentioned at https://github.com/aditya-K2/gomp/issues/20#issuecomment-1142443829

The Slow Down was caused due to constant calls to the MPD Server for
playlist info. Using Watcher to handle playlist event changes.

Also when In SearchView upon adding Artist/Album due to constant change
in playlists there was a slow down. Hence using CommandList for that.

main.go

@@ -60,9 +60,6 @@ func main() {
 	// Generating the Directory Tree for File Navigation.
 	client.DirTree = client.GenerateDirectoryTree(fileMap)
 
-	// Default View upon Opening is of Playlist.
-	views.PView.Update(ui.Ui.ExpandedView)
-
 	var Volume int64
 	var Random, Repeat bool
 	var SeekOffset = viper.GetInt("SEEK_OFFSET")
@@ -120,6 +117,7 @@ func main() {
 
 	// This Function Is Responsible for Changing the Focus it uses the Focus Map and Based on it Chooses
 	// the Draw Function
+	views.PView.StartWatcher()
 	views.SetCurrentView(views.PView)
 	ui.Ui.ExpandedView.SetDrawFunc(func(s tcell.Screen, x, y, width, height int) (int, int, int, int) {
 		views.GetCurrentView().Update(ui.Ui.ExpandedView)