Auto-size the height or remember the window dimensions (width and height)

[nekohayo]

When opening directly with a file, ideally the default window size should be reasonable on the 1st run (i.e. make the application "usable out-of-the-box"), the window's size/maximization state should then be remembered for subsequent runs, and set before the window is shown.

Otherwise (or maybe in addition to that) it should remember what size I have set for the window to display more of its fields. It is annoying to resize the window each time I start the application with a document, especially since the small initial size does not efficiently use the space on high resolution screens (1920x1080 is common these days). That's extra work that the user should not have to do everytime.

Scrolling is annoying, we should treat the window like a physical object that retains its properties, etc.

Some tips on how to do so: https://developer.gnome.org/documentation/tutorials/save-state.html