优化tips和popconfirm的定位

src/modal/popconfirm.js

@@ -152,7 +152,11 @@ class PopConfirm extends Component {
       placement = 'right'
       styles.left = left + 'px'
     } else {
-      let right = window.innerWidth - left + this.clientWidth
+      // 减去小三角形的位移 12px
+      let right = window.innerWidth - left + this.clientWidth - 12
+      if (right < 0) {
+        right = 0
+      }
       styles.right = right + 'px'
     }
 
@@ -225,7 +229,6 @@ class PopConfirm extends Component {
               >确定</wc-button
             >
           </footer>
-          <i class="trigon"></i>
         </div>
       </main>
     `

src/modal/tooltip.js

@@ -124,7 +124,7 @@ class Tooltip extends Component {
       <main class="container">
         <div class="wrapper" ref="wrap"><slot></slot></div>
         <div class="tooltip" ref="tips" #animation=${{}}>
-          <slot name="title">${this.title}</slot><i class="trigon"></i>
+          <slot name="title">${this.title}</slot>
         </div>
       </main>
     `