build: use soft package dependencies

We do NOT need to force the user to install all the package dependenceis. Some packages are optional and should be installed only if the user wants to use the feature that depends on them. This is because some packages are already installed on their system and not all the users need to use all the features that we provide:

- [ ] `matplotlib`

- [ ] `seaborn`

- [ ] `jupyter`

- [ ] `shiny`