Introduced a helper function to format Delphi TDateTime values into
human-readable strings.
Updated the data display to render the latest 200 data points as a chart
instead of a list.
This change improves the visualization of market data by providing a
graphical representation of recent price movements.
This commit introduces the `eframe` dependency and sets up the
foundational structure for a graphical user interface. It includes the
necessary imports for `egui` and prepares the application to render UI
elements.