User Story 28: Implement stylish calendar form

[benediktbrenk]

Value proposition

As a user, I want an interactive calendar to easily select and manage transaction dates.

Description

Acceptance criteria

• [x] When no date is selected, the calendar remains in its default state.
• [x] It is possible to select a single date or a span.
• [x] It is also possible to select the current date by a Today button as well as reset the selection.
• [x] The calendar allows for easy navigation between months and years.
• [x] Selected dates are displayed correctly and can be saved into the filter.

Tasks

• [x] Integrate react-day-picker into the project.
• [x] Implement functionality for selecting dates and times.
• [x] Apply basic styling to the calendar.
• [x] Link selected data to the corresponding functions of the application.

[Xristof23]

LGTM!