Imucal

- Added the option to control the initial figure size of the interactive plot. This should help resolve [24](https://github.com/mad-lab-fau/imucal/issues/24)

- Tooling overhaul to make the development process easier and fix doc building issues
- A bunch of quality of life improvements for the GUI.
You can now use shortcuts (o, p, h, b, and f) to activate the matplib tools for zooming, panning, home, back, and forward.
Once zoomed in, you can use the scrollwheel to scroll along the x-axis.
The first section is also activated by default now, so you can start labeling right away.
- Updated minimal versions of dependencies. Notable: pandas >=2.0, python >=3.9

- Tooling overhaul to make the development process easier and fix doc building issues
- Changed some ValueError to TypeError

- Fixed import so that no tkinter or matplotlib are required when the GUI is not required

- Removed upper version bounds to reduce the chance of version conflicts

- Some minor updates to README.md
- Improved the doc building process: No additional requirements.txt file!
- JOSS paper accepted! :)