feat: Switch terminal backend from Crossterm to Termwiz

[altsem]

The goal is to inevitably switch from Ratatui, and start using Termwiz with Termwiz widgets.

My hope is that this will clean up the UI code quite a bit, as well as allow more features like re-interpreting terminal codes, and perhaps using Termwiz's line editor with autocomplete for prompts.

This merely switches the "backend" of Ratatui from Crossterm to Termwiz.

TODO:

• [x] Test on Mac
• [ ] Test on Windows
• [ ] Fix: moving mouse over terminal causes a brief freeze (events being logged in gitu.log)
• [ ] Fix: hunks turn black when selected and extending beyond terminal

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 49.23547% with 166 lines in your changes missing coverage. Please review.

Project coverage is 85.65%. Comparing base (d11f158) to head (11101dd).

Files with missing lines	Patch %	Lines
src/prompt.rs	49.29%	108 Missing :warning:
src/term.rs	4.65%	41 Missing :warning:
src/lib.rs	0.00%	7 Missing :warning:
src/main.rs	0.00%	6 Missing :warning:
src/state.rs	76.92%	3 Missing :warning:
src/error.rs	0.00%	1 Missing :warning:

Additional details and impacted files

@@                          Coverage Diff                          @@
##           refactor/remove-term-dep-in-state     #352      +/-   ##
=====================================================================
- Coverage                              86.67%   85.65%   -1.03%     
=====================================================================
  Files                                     66       66              
  Lines                                   6163     6356     +193     
=====================================================================
+ Hits                                    5342     5444     +102     
- Misses                                   821      912      +91     

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[sbillig]

@altsem Working well for me on a mac!

[sbillig]

@altsem I've just noticed that when I change the size of my terminal window, a redraw isn't triggered, and gitu doesn't respect the new size (in wezterm and alacritty). Resize events are logged, with correct size values. Is it working for you? If it's mac-specific, I'll try to debug it.

[altsem]

@sbillig I can replicate this resizing bug too. And do recall that it was mentioned in an example I read: https://github.com/wezterm/wezterm/blob/909573fad98a1cccb802a7e7e1d9f4f44e02a177/termwiz/examples/widgets_basic.rs#L119-L125

I didn't manage to figure out a fix for the rendering bug. It seems to occur when there's a style set on the bottom-most right cell of the terminal. Bug in Ratatui? ~/.config/gitu/config.toml

[style]
selection_area.bg = "10"

One alternative is to rewrite the entire rendering code in Termwiz straight away.

[altsem]

I think I'm willing to ignore that rendering bug i encountered for now, it only seems to apply if style.selection_area.bg is set.

The terminal resize bug should be fixed, but I still haven't managed to figure it out.