fix(AddEditContractDialog): remove unnecessary whitespace in calculateClassQuantity function

src/pages/students/components/AddEditContractDialog.vue

@@ -1004,7 +1004,7 @@ const calculateClassQuantity = () => {
 
   const start = parseDateStr(form.signature_date);
   const end = parseDateStr(form.end_date);
-  
+
   if (!start || !end || isNaN(start) || isNaN(end) || start > end) {
     return;
   }
@@ -1015,18 +1015,18 @@ const calculateClassQuantity = () => {
     if (form.weekday !== null && day === Number(form.weekday)) count++;
     if (form.second_weekday !== null && day === Number(form.second_weekday)) count++;
   }
-  
+
   form.class_quantity = count;
   form.total_classes = count;
 };
 
 watch(
   [
-    () => form.signature_date, 
-    () => form.end_date, 
-    () => form.weekday, 
+    () => form.signature_date,
+    () => form.end_date,
+    () => form.weekday,
     () => form.second_weekday
-  ], 
+  ],
   calculateClassQuantity,
   { immediate: true }
 );