Add iPad version

This is a bigger feature request from one user, but in theory we could make a mobile version with the same Avalonia code with a few additional features:

* Load/choose/create reports individually based on name (no choosing of working dir)
* Take pictures with camera to add to current report
* Allow sharing/printing from the app itself
* Anything else needed to make this an app

The issue does not name files, tests, or entry points. Start by examining the Avalonia application structure and its current report workflow, then determine the platform support and requirements for iPad before defining what completion would mean.

Written by the indexing model from the issue text.