Allow specifying min_sdk_version in dioxus config for Android. (#4549)

* allow specifying min_sdk_version inside dioxus config

* rustfmt

packages/cli/src/config/app.rs

@@ -38,4 +38,8 @@ pub(crate) struct ApplicationConfig {
     /// Use this file for the MainActivity.kt associated with the Android app.
     #[serde(default)]
     pub(crate) android_main_activity: Option<PathBuf>,
+
+    /// Specified minimum sdk version for gradle to build the app with.
+    #[serde(default)]
+    pub(crate) android_min_sdk_version: Option<u32>,
 }

packages/cli/src/config/dioxus_config.rs

@@ -22,6 +22,7 @@ impl Default for DioxusConfig {
                 ios_info_plist: None,
                 android_manifest: None,
                 android_main_activity: None,
+                android_min_sdk_version: None,
                 macos_info_plist: None,
                 ios_entitlements: None,
                 macos_entitlements: None,