feat:增加主题颜色和暗黑模式

lib/widgets/awesome_dialog.dart

@@ -25,7 +25,7 @@ void showAwesomeDialog({
       onPressed: onOk,
       style: ElevatedButton.styleFrom(
         elevation: 0,
-        backgroundColor: Colors.orange,
+        backgroundColor: Theme.of(context).primaryColor,
         foregroundColor: Colors.white,
         shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.circular(8),
@@ -61,7 +61,7 @@ void showErrorDialog(BuildContext context, String message) {
     animType: AnimType.scale,
     title: message,
     btnOkText: "好的",
-    btnOkColor: Colors.green,
+    btnOkColor: Colors.red,
     btnOkOnPress: () {},
     autoHide: Duration(seconds: 2),
   ).show();