Experiment with textual for next release of jut

[kracekumar]

Textual looks interesting and makes jut look better for rendering image and pagination.

[The-Compiler]

FWIW I experimented with this a bit for another project - for some reason (perhaps a Textual bug?), jut's output isn't displayed properly inside Textual, but other than that it's rather simple to integrate it: Textualize/textual#123

[kracekumar]

Thanks for digging into it. I'll be happy to see how the exploration comes out!