fix: migrate firewall to allowedHosts option

[anshumanv]

• This is a bugfix
• This is a feature
• This is a code refactor
• This is a test update
• This is a docs update
• This is a metadata update

For Bugs and Features; did you add new tests?

existing

Motivation / Use-Case

add more verbose option, firewall was misleading

Breaking Changes

yep

Additional Info

[codecov]

Codecov Report

Merging #3345 (6f226a8) into master (2d68701) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3345      +/-   ##
==========================================
+ Coverage   95.63%   95.65%   +0.01%     
==========================================
  Files          33       33              
  Lines        1283     1288       +5     
  Branches      369      373       +4     
==========================================
+ Hits         1227     1232       +5     
  Misses         52       52              
  Partials        4        4              

Impacted Files	Coverage Δ
lib/Server.js	95.80% <100.00%> (ø)
lib/utils/normalizeOptions.js	100.00% <100.00%> (ø)

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[anshumanv]

@alexander-akait done

[anshumanv]

All done and rebased 👍

[anshumanv]

@snitin315 need some more changes, wip 👍

[alexander-akait]

Finish your work

[alexander-akait]

@snitin315 I think we can finish CLI options, in future when we add new options we need to add them in CLI, do you need help?

[alexander-akait]

/cc @snitin315 @anshumanv need review

[snitin315]

Looks Good!

[snitin315]

@snitin315 I think we can finish CLI options, in future when we add new options we need to add them in CLI, do you need help?

Yeah, any help finishing tests is appreciated 👍🏻 .