style(modules/web): lint code with eslint

modules/web/src/pages/bookshelf/main.js

@@ -10,12 +10,12 @@ createApp(App).use(store).use(bookRouter).mount("#app");
 useBookStore().loadReadConfig();
 // 同步Element PLUS 夜间模式
 watch(
-    () => useBookStore().isNight,
-    (isNight) => {
-        if (isNight) {
-            document.documentElement.classList.add("dark");
-        } else {
-            document.documentElement.classList.remove("dark");
-        }
+  () => useBookStore().isNight,
+  (isNight) => {
+    if (isNight) {
+      document.documentElement.classList.add("dark");
+    } else {
+      document.documentElement.classList.remove("dark");
     }
-)
+  },
+);