Fix more examples to work with dioxus-native (#5179)

* Enable native for hotdog, file-explorer, and bluetooth-scanner examples

Signed-off-by: Nico Burns <nico@nicoburns.com>

* Fix crash in calculator example

Signed-off-by: Nico Burns <nico@nicoburns.com>

* Add config macro for native

* Add Config struct to dioxus-native

* Re-export dioxus-native as dioxus::native

* Fix calculator example to work with dioxus-native

* Fix calculator_mutable example to work with dioxus-native

---------

Signed-off-by: Nico Burns <nico@nicoburns.com>

packages/native/src/config.rs

@@ -0,0 +1,32 @@
+use dioxus_core::LaunchConfig;
+use winit::window::WindowAttributes;
+
+/// The configuration for the desktop application.
+pub struct Config {
+    pub(crate) window_attributes: WindowAttributes,
+}
+
+impl LaunchConfig for Config {}
+
+impl Default for Config {
+    fn default() -> Self {
+        Self {
+            window_attributes: WindowAttributes::default().with_title(
+                dioxus_cli_config::app_title().unwrap_or_else(|| "Dioxus App".to_string()),
+            ),
+        }
+    }
+}
+
+impl Config {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    /// Set the configuration for the window.
+    pub fn with_window_attributes(mut self, attrs: WindowAttributes) -> Self {
+        // We need to do a swap because the window builder only takes itself as muy self
+        self.window_attributes = attrs;
+        self
+    }
+}