Increase CRDT Counter in local change

[chacha912]

What this PR does / why we need it?

Any background context you want to provide?

What are the relevant tickets?

Fixes #438

Checklist

• Added relevant tests or not required
• Didn't break anything

[codecov]

Codecov Report

Merging #441 (189924e) into main (d67e898) will decrease coverage by 0.10%.
The diff coverage is 14.28%.

@@            Coverage Diff             @@
##             main     #441      +/-   ##
==========================================
- Coverage   89.51%   89.41%   -0.10%     
==========================================
  Files          69       69              
  Lines        5321     5328       +7     
  Branches      524      530       +6     
==========================================
+ Hits         4763     4764       +1     
  Misses        381      381              
- Partials      177      183       +6     

Impacted Files	Coverage Δ
test/integration/counter_test.ts	86.95% <0.00%> (-8.29%)	⬇️
src/document/json/counter.ts	78.94% <100.00%> (+1.16%)	⬆️

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[hackerwins]

@cozitive

There was some confusion in the documentation description.

1. Update by 1.1 Doc.Update() refers to the operation of this function. It seems that Root(Proxy) in the document should be changed to Clone(Proxy).

2. Update by 1.3 Apply Changes refers to the operation of applying operations logic. I think we need to fix the CRDT to Root.

You can check the modified diagram at the link below.
https://miro.com/app/board/o9J_kidjCtk=/?moveToWidget=3458764544271491642&cot=14

[hackerwins]

@chacha912 , @cozitive
Thanks for your contribution.