Accounting App: UI, Backend, Optimization, Features added

Freelance Client asked for features to be added to a React Native desktop application. There were long-standing bugs in the UI as well as backend / data / database application logic. I fixed the bugs in the UI to provide an optimized user experience as well as fixed backend logic that caused errors in the accounting application. Additionally added records and PDF document exporting feature, expanded the scope of the ui from displaying one month record at a time to process and display a variety of months with advanced filtering. React Native, Typescript, Angular, Javascript, DevExtreme, DevExpress