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[bot]]

Codecov Report

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

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

Additional details and impacted files

```diff @@ 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](https://app.codecov.io/gh/dundee/gdu/pull/250?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Daniel+Milde) | Coverage Δ | | |---|---|---| | [tui/keys.go](https://app.codecov.io/gh/dundee/gdu/pull/250?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Daniel+Milde#diff-dHVpL2tleXMuZ28=) | `90.98% <12.50%> (-5.51%)` | :arrow_down: | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/dundee/gdu/pull/250/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Daniel+Milde)

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[dundee]

Great contribution! Thank you!