fix (code design): use match instead of if+unwrap

src/main.rs

@@ -8,13 +8,13 @@ pub mod helper;
 use helper::settings::Settings;
 
 fn main() {
-    let settings_result = Settings::new();
+    let settings = match Settings::new(){
+	Ok(settings) => settings,
+	Err(e) => {
+		println!("Failed to read config: {}", e);
+		std::process::exit(1);
+	}
+    };
 
-    if settings_result.is_err() {
-        println!("Failed to read config: {:#?}", settings_result.err());
-        std::process::exit(1)
-    }
-
-    let settings = settings_result.unwrap();
     println!("Hello, world! Default Language: {}", settings.application.default_language);
 }