fix: issue: [2717] coverage calculation improvements

[DanteUkraine]

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Description

As a user of coverage feature I faced need to see total and covered numbers of queries and mutations.
So I decided to apply improvements.

Fixes # (2717)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

I updated existing unit tests.

Test Environment:

• OS:
• @graphql-inspector/...:
• NodeJS:

Checklist:

• I have followed the
  CONTRIBUTING doc and the
  style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose
the solution you did and what alternatives you considered, etc...

[changeset-bot]

🦋 Changeset detected

Latest commit: f52942a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 9 packages

Name	Type
@graphql-inspector/coverage-command	Minor
@graphql-inspector/core	Minor
@graphql-inspector/cli	Patch
@graphql-inspector/action	Patch
@graphql-inspector/audit-command	Patch
@graphql-inspector/diff-command	Patch
@graphql-inspector/introspect-command	Patch
@graphql-inspector/similar-command	Patch
@graphql-inspector/validate-command	Patch

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[DanteUkraine]

@TuvalSimha New PR with my changes only, #2775

[TuvalSimha]

@DanteUkraine thank you very much! great job