refactor(utils): 简化 toast 扩展函数实现

- 移除多余的 null 检查代码块
- 删除已注释的旧版 toast 实现
- 简化条件判断语法
- 保留 ToastUtil 统一调用方式

app/src/main/java/com/shuwei/dish/match/utils/ext/Common.kt

@@ -31,10 +31,7 @@ fun Context.toast(
     message: String?,
     duration: Int = Toast.LENGTH_SHORT,
 ) {
-    if (message.isNullOrBlank()) {
-        return
-    }
-    //Toast.makeText(this, message, duration).show()
+    if (message.isNullOrBlank()) return
     ToastUtil.show(this, message, duration)
 }
 
@@ -45,28 +42,6 @@ fun Fragment.toast(
     activity?.toast(message, duration)
 }
 
-//fun Fragment.toast(
-//    message: String?,
-//    duration: Int = 2000
-//) {
-//    if (isAdded.not()) {
-//        return
-//    }
-//    CustomToast(
-//        activity = requireActivity(),
-//        message = message,
-//        duration = duration
-//    ).show()
-//}
-//
-//public fun BaseActivity.toast(message: String?, duration: Int = 2000) {
-//    CustomToast(
-//        activity = this,
-//        message = message,
-//        duration = duration
-//    ).show()
-//}
-
 fun View.visible() {
     visibility = View.VISIBLE
 }