Feature Request (REACT) : Dashboard Overview: Year-over-Year (YoY) Comparison

As a user, I want to see a graphical comparison with the same period from the previous year on my dashboard, So that I can immediately understand how my finances have evolved compared to last year. Context / Background This feature was previously available in the Flutter version of the application. We want to achieve functional parity in the current environment to ensure users can track long-term financial trends. Acceptance Criteria (AC) Toggle Setting : The dashboard must include a setting/toggle that allows the user to enable or disable the "Previous Year Comparison" view. Graphical Overlay When enabled, the dashboard charts (e.g., Invoices/Payments) should display the data from the current period alongside a visually distinct line or bar representing the corresponding period from the previous year. Tooltip Details Hovering over the graph should show the exact values for both the current year and the previous year for that specific data point. Empty Sta…