feat(Coupon): add new prop condition @rex-zsd (#2551)

packages/coupon/index.js

@@ -60,7 +60,7 @@ export default sfc({
         <div class={bem('content')}>
           <div class={bem('head')}>
             <h2 domPropsInnerHTML={this.faceAmount} />
-            <p>{this.conditionMessage}</p>
+            <p>{this.coupon.condition || this.conditionMessage}</p>
           </div>
           <div class={bem('body')}>
             <h2>{coupon.name}</h2>

packages/coupon/index.less

@@ -39,7 +39,8 @@
   }
 
   &__head {
-    min-width: 90px;
+    position: relative;
+    min-width: 95px;
 
     h2 {
       color: @red;
@@ -49,6 +50,10 @@
         font-size: 50%;
       }
     }
+
+    p {
+      white-space: pre-wrap;
+    }
   }
 
   &__body {