修复编辑时滚动条的问题

src/components/editor/WechatEditor.tsx

@@ -105,6 +105,7 @@ export default function WechatEditor() {
     setValue(newValue)
     handleEditorChange(newValue)
     
+    // 使用 requestAnimationFrame 确保在下一帧恢复滚动位置和光标位置
     requestAnimationFrame(() => {
       if (textareaRef.current) {
         textareaRef.current.scrollTop = currentPosition.scrollTop

src/components/editor/components/DesktopEditor.tsx

@@ -61,8 +61,15 @@ export function DesktopEditor({
             ref={textareaRef}
             value={value}
             onChange={e => {
+              const scrollTop = e.target.scrollTop;
               onValueChange(e.target.value)
               onEditorChange(e.target.value)
+              // 保持滚动位置
+              requestAnimationFrame(() => {
+                if (textareaRef.current) {
+                  textareaRef.current.scrollTop = scrollTop;
+                }
+              });
             }}
             onKeyDown={onKeyDown}
             onScroll={e => {

src/components/editor/components/MobileEditor.tsx

@@ -55,8 +55,15 @@ export function MobileEditor({
               ref={textareaRef}
               value={value}
               onChange={e => {
+                const scrollTop = e.target.scrollTop;
                 onValueChange(e.target.value)
                 onEditorChange(e.target.value)
+                // 保持滚动位置
+                requestAnimationFrame(() => {
+                  if (textareaRef.current) {
+                    textareaRef.current.scrollTop = scrollTop;
+                  }
+                });
               }}
               onScroll={e => {
                 if (textareaRef.current) {