bugfix] Search: trigger blur after click search button (#1448)

packages/field/index.vue

@@ -162,6 +162,9 @@ export default create({
           event.preventDefault();
         }
       }
+      if (this.type === 'search' && event.keyCode === 13) {
+        this.blur();
+      }
       this.$emit('keypress', event);
     },
 

packages/vant-css/src/field.css

@@ -21,6 +21,7 @@
     width: 100%;
     resize: none;
     display: block;
+    line-height: normal;
     box-sizing: border-box;
     background-color: transparent;