Only 24 tasks shown in small terminal window.

[Bergschrat1]

Describe the bug

Taskwarrior-tui only shows the first 24 tasks of a report even though there are many more when run in a small terminal window.
This is due to the rc.defaultheight setting. To me it seems off that a scrollable TUI application would limit the amount of data based on the terminal size.
I would suggest to use rc.defaultheight=0 when exporting the tasks so that always all the tasks are shown.

To Reproduce

1. Use a database with more than 24 tasks.
2. Ensure that the rc.defaultheight setting is on it's default value (24)
3. Open a small terminal window
4. run taskwarrior-tui
5. There will only be 24 tasks