feat: add filename extension and verbose flag

lib/app.go

@@ -3,11 +3,13 @@ package lib
 type App struct {
 	UserAgent           string // User agent used for scraping requests
 	SelectedTidalApiUrl string
+	Verbose             bool
 }
 
 func NewApp() App {
 	return App{
 		UserAgent: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36",
+		Verbose: false,
 	}
 }