fix: 修复长文档分页与滚动同步

apps/web/src/paged-preview.ts

@@ -2,6 +2,7 @@ import {
   getPaperDimensionsMm,
   type ExportConfig
 } from "@md-to-pdf/core";
+import { PREVIEW_SCROLLBAR_WIDTH_PX } from "./preview-page";
 
 export const PAGED_PREVIEW_MESSAGE_SCOPE = "md-to-pdf:paged-preview";
 
@@ -335,7 +336,27 @@ ${
   width: max-content;
   min-width: 100%;
   margin: 0 auto;
-  padding: 0;
+  padding: 34px 0;
+}
+
+html[data-render-target="preview"] {
+  height: 100%;
+  overflow-x: hidden;
+  overflow-y: scroll;
+  scrollbar-gutter: stable;
+}
+
+html[data-render-target="preview"]::-webkit-scrollbar {
+  width: ${PREVIEW_SCROLLBAR_WIDTH_PX}px;
+}
+
+html[data-render-target="preview"]::-webkit-scrollbar:horizontal {
+  height: 0;
+}
+
+html[data-render-target="preview"] body {
+  min-height: 100%;
+  overflow: visible;
 }
 
 .pagedjs_page {
@@ -354,6 +375,7 @@ html[data-render-target="pdf"] .pagedjs_pages {
   display: block;
   width: auto;
   min-width: 0;
+  padding: 0;
 }
 
 html[data-render-target="pdf"] .pagedjs_page {