feat: show multiple suggestions on unknown options

[alexander-akait]

What kind of change does this PR introduce?

feature + refactoring

Did you add tests for your changes?

Yes

If relevant, did you update the documentation?

No need

Summary

Show multiple suggestions

Does this PR introduce a breaking change?

No

Other information

Removed unnecessary usage, because commander generates it by default

[codecov]

Codecov Report

Merging #2349 (c6438a9) into master (9b39f1e) will decrease coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2349      +/-   ##
==========================================
- Coverage   68.19%   68.14%   -0.05%     
==========================================
  Files          50       50              
  Lines        2053     2050       -3     
  Branches      509      509              
==========================================
- Hits         1400     1397       -3     
  Misses        653      653              

Impacted Files	Coverage Δ
packages/webpack-cli/lib/utils/cli-flags.js	97.22% <ø> (-0.22%)	⬇️
packages/webpack-cli/lib/webpack-cli.js	89.86% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9b39f1e...c6438a9. Read the comment docs.