fix(menu): simplify menu day check and adjust date comparison logic (#880)

Author: ecnivtwelve

src/services/pronote/menu.ts

@@ -8,12 +8,20 @@ export const getMenu = async (account: PronoteAccount, date: Date): Promise<Menu
   }
 
   const menu = await pronote.menus(account.instance, date);
-  if (!menu.days || menu.days.length === 0) {
+  if (!menu.days?.length) {
     return { date };
   }
+
   const day = menu.days[0];
 
-  if (day.date?.getTime() !== date.getTime()) {
+  const updatedDate = new Date(day.date);
+  updatedDate.setDate(updatedDate.getDate() + 1);
+  updatedDate.setUTCHours(0, 0, 0, 0);
+
+  const targetDate = new Date(date);
+  targetDate.setUTCHours(0, 0, 0, 0);
+
+  if (updatedDate.getTime() !== targetDate.getTime()) {
     return { date };
   }