improv: impl From<M> for Message<M>

examples/open-dialog/src/main.rs

@@ -140,7 +140,7 @@ impl cosmic::Application for App {
                     // Send this back to the application.
                     Message::FileRead(url, contents)
                 })
-                .map(cosmic::app::message::app);
+                .map(Into::into);
             }
 
             // Creates a new open dialog.

src/app/mod.rs

@@ -37,6 +37,12 @@ pub mod message {
     pub const fn none<M>() -> Message<M> {
         Message::None
     }
+
+    impl<M> From<M> for Message<M> {
+        fn from(value: M) -> Self {
+            Self::App(value)
+        }
+    }
 }
 
 pub use self::command::Command;

src/applet/mod.rs

@@ -372,7 +372,7 @@ pub fn style() -> <crate::Theme as iced_style::application::StyleSheet>::Style {
 pub fn menu_button<'a, Message>(
     content: impl Into<Element<'a, Message>>,
 ) -> crate::widget::Button<'a, Message> {
-    crate::widget::Button::new(content)
+    crate::widget::button(content)
         .style(Button::AppletMenu)
         .padding(menu_control_padding())
         .width(Length::Fill)