Added Spotify Features explanation link and translation for login button

src/lang/en.js

@@ -186,7 +186,8 @@ const en = {
 				question: 'How do I get my own ARL?',
 				update: 'Update ARL'
 			},
-			logout: 'Logout'
+			logout: 'Logout',
+			login: 'Login via deezer.com'
 		},
 		appearance: {
 			title: 'Appearance',
@@ -339,7 +340,8 @@ const en = {
 			title: 'Spotify Features',
 			clientID: 'Spotify ClientID',
 			clientSecret: 'Spotify Client Secret',
-			username: 'Spotify Username'
+			username: 'Spotify Username',
+			question: 'How do I enable Spotify Features?'
 		},
 		reset: 'Reset to Default',
 		save: 'Save',

src/lang/it.js

@@ -192,7 +192,8 @@ const it = {
 				question: 'Come ottengo il mio ARL?',
 				update: 'Aggiorna ARL'
 			},
-			logout: 'Disconnettiti'
+			logout: 'Disconnettiti',
+			login: 'Accedi tramite deezer.com'
 		},
 		appearance: {
 			title: 'Aspetto',
@@ -345,7 +346,8 @@ const it = {
 			title: 'Spotify Features',
 			clientID: 'Spotify clientID',
 			clientSecret: 'Spotify Client Secret',
-			username: 'Spotify username'
+			username: 'Spotify username',
+			question: 'Come attivo le Spotify Features?'
 		},
 		reset: 'Reimposta Default',
 		save: 'Salva',