Add 5-star rating system(#986)

* Added Star Rating functionality for Songs

* Added Star Rating functionality for Artists

* Added Star Rating functionality for AlbumListView

* Added Star Rating functionality for AlbumDetails and improved typography for title

* Added functionality to turn on/off Star Rating functionality for Songs

* Added functionality to turn on/off Star Rating functionality for Artists

* Added functionality to turn on/off Star Rating functionality for Albums

* Added enableStarRating to server config

* Resolved the bugs and improved the ratings functionality.

* synced repo and removed duplicate key

* changed the default rating size to small, and changed the color to match the theme.

* Added translations for ratings, and Top Rated tab in side menu.

* Changed rating translation to topRated in albumLists, and added has_rating filter to topRated.

* Added empty stars icon to RatingField.

* Added sortable=false in AlbumSongs and added sortByOrder=DESC in all List components.

* Added translations for rating, for artists and albums, and removed the sortByOrder=DESC from SimpleLists.

conf/configuration.go

@@ -41,6 +41,7 @@ type configOptions struct {
 	UIWelcomeMessage       string
 	EnableGravatar         bool
 	EnableFavourites       bool
+	EnableStarRating       bool
 	GATrackingID           string
 	AuthRequestLimit       int
 	AuthWindowLength       time.Duration
@@ -145,6 +146,7 @@ func init() {
 	viper.SetDefault("uiwelcomemessage", "")
 	viper.SetDefault("enablegravatar", false)
 	viper.SetDefault("enablefavourites", true)
+	viper.SetDefault("enablestarrating", true)
 	viper.SetDefault("gatrackingid", "")
 	viper.SetDefault("authrequestlimit", 5)
 	viper.SetDefault("authwindowlength", 20*time.Second)