chore(client): rename clientOptions to client

[knagaitsev]

• 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?

No

Motivation / Use-Case

Renaming clientOptions to client

Breaking Changes

Yes, renaming of option, though clientOptions was introduced on the v4 branch so there is no problem

Additional Info

[codecov]

Codecov Report

Merging #2655 into v4 will decrease coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##               v4    #2655      +/-   ##
==========================================
- Coverage   92.46%   92.41%   -0.05%     
==========================================
  Files          34       34              
  Lines        1300     1292       -8     
  Branches      365      357       -8     
==========================================
- Hits         1202     1194       -8     
  Misses         93       93              
  Partials        5        5              

Impacted Files	Coverage Δ
lib/servers/SockJSServer.js	94.11% <ø> (ø)
lib/servers/WebsocketServer.js	94.11% <ø> (ø)
lib/Server.js	95.90% <100.00%> (ø)
lib/utils/addEntries.js	100.00% <100.00%> (ø)
lib/utils/createConfig.js	95.50% <100.00%> (ø)
lib/utils/normalizeOptions.js	100.00% <100.00%> (ø)

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[hiroppy]

windows CI fails.

[knagaitsev]

@hiroppy I think it's just test instability, nothing related to the actual changes. I'm going to work on test stability improvements soon

[alexander-akait]

Let's merge and stability test in the future