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>

examples/01-app-demos/bluetooth-scanner/Cargo.toml

@@ -8,7 +8,12 @@ publish = false
 
 [dependencies]
 tokio = { workspace = true, features = ["full"] }
-dioxus = { workspace = true, features = ["desktop"] }
+dioxus = { workspace = true }
 futures-channel = { workspace = true }
 futures = { workspace = true }
 btleplug = "0.11.8"
+
+[features]
+default = ["desktop"]
+desktop = ["dioxus/desktop"]
+native = ["dioxus/native"]