feat: add ctrl+z for job control

[yurenchen000]

only tested on

• OS:
  • ubuntu 22.04
• terminal:
  • terminator
  • kitty
• TERM
  • xterm-*
  • linux //scroll back maybe broken (same as vim)

[lilydjwg]

I tested your patch on Arch Linux with tmux and it worked well.

[codecov]

Codecov Report

Patch coverage: 12.50% and project coverage change: -0.29 ⚠️

Comparison is base (c410af8) 93.85% compared to head (21a706d) 93.57%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #250      +/-   ##
==========================================
- Coverage   93.85%   93.57%   -0.29%     
==========================================
  Files          29       29              
  Lines        2768     2784      +16     
==========================================
+ Hits         2598     2605       +7     
- Misses        129      138       +9     
  Partials       41       41              

Impacted Files	Coverage Δ
tui/keys.go	90.98% <12.50%> (-5.51%)	⬇️

... and 1 file with indirect coverage changes

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[dundee]

Great contribution! Thank you!