Gajlaxmi Shop

1. Transparent message on a blank activity instead of a popup when no data is found.
2. Fix the total amount displayed on the voucher approval page.
3. Display sales amounts in commission history/current month page.
4. Set the end date for the current shopkeeper as today's date.
5. In voucher JSON details, add a total row for tabular amount data.
6. Rename the "Add Kara" button to कमिशन बंद करा on the commission start/stop page.
7. Display large amount figures with commas for better readability.