Translated using Weblate (added Tamil) (#5254)

Co-authored-by: Biscuittttt <biscuitwithtea.tall310@passinbox.com>
Co-authored-by: Carlos Carreras <mytriponlinux@gmail.com>
Co-authored-by: Kevin Papst <kevin@kevinpapst.de>
Co-authored-by: Languages add-on <noreply-addon-languages@weblate.org>
Co-authored-by: Massimo Pissarello <mapi68@gmail.com>
Co-authored-by: Milo Ivir <mail@milotype.de>
Co-authored-by: Wellington Terumi Uemura <wellingtonuemura@gmail.com>
Co-authored-by: Yaron Shahrabani <sh.yaron@gmail.com>
Co-authored-by: abdelbasset jabrane <ribago9317@cubene.com>
Co-authored-by: yblis <yblisss@yahoo.fr>
Co-authored-by: Максим Горпиніч <mgorpinic2005@gmail.com>
Co-authored-by: தமிழ்நேரம் <anishprabu.t@gmail.com>

translations/invoice-calculator.ar.xlf

@@ -50,6 +50,10 @@
         <source>date_user</source>
         <target state="translated">التاريخ والمستخدِم</target>
       </trans-unit>
+      <trans-unit id="KWX.j1b" resname="invoice_calculator.help" xml:space="preserve">
+        <source>invoice_calculator.help</source>
+        <target state="translated">حدد الحقول التي يجب تجميع عناصر الفاتورة بناءً عليها</target>
+      </trans-unit>
     </body>
   </file>
 </xliff>