- Modified 'Dialogs.css' to replace the button-based UI with a dropdown select for invoice download
options.
- Refactored the relevant methods in 'Dialogs.js' accordingly, removing button event listeners and
implementing new logic for select-based UI.
- Replaced 'QUIPopup' with 'QUIConfirm' to incorporate an 'OK' button for confirmation.
- Changed hardcoded button options to select options in the DOM structure.
- Altered event listeners in 'Dialogs.js' to suit the new 'select' element and handle submission of
invoice download requests differently.
- Preserved the behavior of injecting an iframe for actual downloads, with necessary changes in
parameters and references now pointing to the select value instead of button value.

Related: quiqqer/invoice#157

- Loaded user lock information to enhance usability in Invoice and TemporaryInvoice panels.
- Ensured more meaningful user data for lock notification messages.
- Renamed functions and aligned code for better readability.
- Refined dependency loading in unlock panel function to increase stability.
- Added 'Users' dependency for user information retrieval.

Related: pcsg/buero#488

Feat e rechnung

See merge request !84

Related: #141

Related: #154

Related: pcsg/buero#456

Related: pcsg/buero#458

Related: pcsg/buero#435

Add QUIQQER Tooling

See merge request !56