fix(swipe-cell): 修复t-swipe-cell 在 t-popup 中无法左右滑动 (#1141)

在移动开始时，重新获取内容宽度，修复该问题

fix #1055

src/swipe-cell/swipe-cell.vue

@@ -181,6 +181,7 @@ export default defineComponent({
         if (props.disabled) {
           return;
         }
+        setPanelWidth();
         swipeDir = 0;
         initData.moved = false;
         initData.offset = initData.pos;
@@ -231,12 +232,16 @@ export default defineComponent({
       },
     });
 
-    const classes = computed(() => [`${name}`]);
-    onMounted(() => {
+    const setPanelWidth = () => {
       const leftWidth = leftRef.value?.clientWidth as number;
       const rightWidth = rightRef.value?.clientWidth as number;
       initData.leftWidth = leftWidth > 0 ? leftWidth : 0;
       initData.rightWidth = rightWidth > 0 ? rightWidth : 0;
+    };
+
+    const classes = computed(() => [`${name}`]);
+    onMounted(async () => {
+      setPanelWidth();
       renderMenuStatus();
     });
     onUnmounted(() => {