refactor: use newer helper method in State::new

this should keep it from printing "no image to allocate"
each time when started without an argument

src/main.rs

@@ -30,14 +30,14 @@ impl State {
     fn new() -> (Self, Task<Message>) {
         let mut state = State::default();
 
-        state.error = env::args().nth(1).and_then(|path| {
-            utils::load_image(path)
-                .map(|image| state.image = Some(image))
-                .err()
-        });
-        let allocate_image = state.allocate_image();
+        if let Some(path) = env::args().nth(1) {
+            match state.load_image(path) {
+                Err(e) => state.error = Some(e),
+                Ok(task) => return (state, task),
+            }
+        }
 
-        (state, allocate_image)
+        (state, Task::none())
     }
     fn view(&self) -> Element<'_, Message, Theme, Renderer> {
         let mut main = Vec::new();