fix(typography): fix custom text copy(#5977)

* fix: custom copy text

* chore: stash changelog [ci skip]

---------

Co-authored-by: tdesign-bot <[email protected]>

Author: Wesley-0808

packages/components/typography/text.tsx

@@ -93,6 +93,10 @@ export default defineComponent({
     };
 
     const getChildrenText = () => {
+      const { copyable } = props;
+      if (typeof copyable === 'object' && copyable?.text) {
+        return copyable.text;
+      }
       if (typeof content.value === 'string') {
         return content.value;
       } else if (Array.isArray(content.value)) {

packages/tdesign-vue-next/.changelog/pr-5977.md

@@ -0,0 +1,6 @@
+---
+pr_number: 5977
+contributor: Wesley-0808
+---
+
+- fix(Typography): 修复自定义复制内容无效的问题 @Wesley-0808 ([#5977](https://github.com/Tencent/tdesign-vue-next/pull/5977))