feat: add localStorage for page_height

Author: dfface

epub_browser/processor.py

@@ -2845,6 +2845,12 @@ def create_chapter_template(self, content, style_links, chapter_index, chapter_t
                 } else if (fontSize == "small") {
                     contentHeight += 40;
                 }
+                if (!isKindleMode()) {
+                    let customContentHeight = localStorage.getItem("page_height");
+                    if (customContentHeight) {
+                        contentHeight = parseInt(customContentHeight);
+                    }
+                }
                 
                 // 分割内容为页面
                 let currentPageContent = '';