Remove unused components and models for improved maintainability

- Deleted redundant components (`AddActionButton`, `AlertBox`, `AlertStack`, `BackButton`, `CancelButton`, and `CollapsableArea`) and related files.
- Removed unused models (`Book`, `BookSerie`, `BookTables`, `Character`, and `Chapter`) to reduce codebase clutter.
- Updated project structure and references to reflect these removals.

components/series/SeriesSetting.tsx

@@ -3,21 +3,20 @@ import {useState} from "react";
 import SeriesSettingSidebar from "@/components/series/SeriesSettingSidebar";
 import SeriesSettingOption from "@/components/series/SeriesSettingOption";
 import {SeriesContext} from "@/context/SeriesContext";
-import {useTranslations} from "next-intl";
-import SettingsPanel from "@/components/SettingsPanel";
+import {useTranslations} from '@/lib/i18n';
+import SettingsPanel from "@/components/ui/SettingsPanel";
 
 interface SeriesSettingProps {
     seriesId: string;
-    localSeries: boolean;
     onClose: () => void;
 }
 
-export default function SeriesSetting({seriesId, localSeries, onClose}: SeriesSettingProps) {
+export default function SeriesSetting({seriesId, onClose}: SeriesSettingProps) {
     const t = useTranslations();
     const [currentSetting, setCurrentSetting] = useState<string>('basic-information');
-
+    
     return (
-        <SeriesContext.Provider value={{seriesId, localSeries}}>
+        <SeriesContext.Provider value={{seriesId}}>
             <SettingsPanel
                 title={t("bookList.seriesSettings")}
                 sidebar={