Add spell management to book settings

- Moved spell-related components to the `book/settings/spells` directory for better organization.
- Added "Spells" as a new tool in book settings and composer sidebar with localization support.
- Integrated spell-related UI elements (`SpellComponent`, `SpellList`, `SpellTagManager`) into settings and sidebars.
- Updated logic to handle enabling/disabling of the spells tool per book.

components/book/settings/BookSettingOption.tsx

@@ -7,6 +7,7 @@ import {RefObject, useRef} from "react";
 import PanelHeader from "@/components/PanelHeader";
 import LocationComponent from "@/components/book/settings/locations/LocationComponent";
 import CharacterComponent from "@/components/book/settings/characters/CharacterComponent";
+import SpellComponent from "@/components/book/settings/spells/SpellComponent";
 import QuillSenseSetting from "@/components/book/settings/quillsense/QuillSenseSetting";
 import {useTranslations} from "next-intl"; // Ajouté pour la traduction
 
@@ -36,6 +37,9 @@ export default function BookSettingOption(
     const characterRef: RefObject<{ handleSave: () => Promise<void> } | null> = useRef<{
         handleSave: () => Promise<void>
     }>(null);
+    const spellRef: RefObject<{ handleSave: () => Promise<void> } | null> = useRef<{
+        handleSave: () => Promise<void>
+    }>(null);
     const quillSenseRef: RefObject<{ handleSave: () => Promise<void> } | null> = useRef<{
         handleSave: () => Promise<void>
     }>(null);
@@ -54,6 +58,8 @@ export default function BookSettingOption(
                 return t("bookSettingOption.yourLocations");
             case 'characters':
                 return t("bookSettingOption.characters");
+            case 'spells':
+                return t("bookSettingOption.spells");
             case 'objects':
                 return t("bookSettingOption.objectsList");
             case 'goals':
@@ -85,6 +91,9 @@ export default function BookSettingOption(
             case 'characters':
                 characterRef.current?.handleSave();
                 break;
+            case 'spells':
+                spellRef.current?.handleSave();
+                break;
             case 'quillsense':
                 quillSenseRef.current?.handleSave();
                 break;
@@ -118,6 +127,8 @@ export default function BookSettingOption(
                         <LocationComponent ref={locationRef}/>
                     ) : setting === 'characters' ? (
                         <CharacterComponent ref={characterRef}/>
+                    ) : setting === 'spells' ? (
+                        <SpellComponent ref={spellRef}/>
                     ) : setting === 'quillsense' ? (
                         <QuillSenseSetting ref={quillSenseRef}/>
                     ) : <div