improve the state editor hooks, allow initialState

[acao]

improving the plugin authoring experience!

[changeset-bot]

🦋 Changeset detected

Latest commit: ebc7f0b

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

This PR includes changesets to release 4 packages

Name	Type
@graphiql/react	Minor
@graphiql/plugin-code-exporter	Major
@graphiql/plugin-explorer	Major
graphiql	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[codecov]

Codecov Report

Merging #3443 (ebc7f0b) into main (2348641) will increase coverage by 0.07%.
Report is 15 commits behind head on main.
The diff coverage is 78.04%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3443      +/-   ##
==========================================
+ Coverage   55.75%   55.82%   +0.07%     
==========================================
  Files         110      110              
  Lines        5243     5261      +18     
  Branches     1426     1434       +8     
==========================================
+ Hits         2923     2937      +14     
- Misses       1897     1900       +3     
- Partials      423      424       +1     

Files	Coverage Δ
...raphql-language-service-server/src/GraphQLCache.ts	50.88% <50.00%> (ø)
...ql-language-service-server/src/MessageProcessor.ts	46.11% <50.00%> (-0.11%)	⬇️
...nguage-service/src/utils/getVariablesJSONSchema.ts	94.59% <98.38%> (+0.71%)	⬆️
packages/graphiql-react/src/editor/hooks.ts	38.16% <6.25%> (-0.42%)	⬇️

[github-actions]

The latest changes of this PR are available as canary in npm (based on the declared changesets):

graphiql@3.0.7-canary-8cc1801a.0
@graphiql/plugin-code-exporter@1.0.0-canary-8cc1801a.0
@graphiql/plugin-explorer@1.0.0-canary-8cc1801a.0
@graphiql/react@0.20.0-canary-8cc1801a.0