move GraphQL utils from graphiql to @graphiql/toolkit

[thomasheyenbrock]

We move over:

• fillLeafs
• getSelectedOperationName
• mergeAst

Also the getQueryFacts utility module was unused (just re-exporting stuff from graphql-language-service), so we remove it.

[changeset-bot]

🦋 Changeset detected

Latest commit: e4d01cb

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

This PR includes changesets to release 3 packages

Name	Type
graphiql	Patch
@graphiql/toolkit	Minor
@graphiql/react	Patch

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

[codecov]

Codecov Report

Merging #2419 (e4d01cb) into main (2d91916) will increase coverage by 3.31%.
The diff coverage is 71.67%.

@@            Coverage Diff             @@
##             main    #2419      +/-   ##
==========================================
+ Coverage   65.70%   69.02%   +3.31%     
==========================================
  Files          85       72      -13     
  Lines        5106     4587     -519     
  Branches     1631     1517     -114     
==========================================
- Hits         3355     3166     -189     
+ Misses       1747     1417     -330     
  Partials        4        4              

Impacted Files	Coverage Δ
packages/codemirror-graphql/src/hint.ts	94.73% <ø> (ø)
packages/codemirror-graphql/src/lint.ts	100.00% <ø> (ø)
packages/codemirror-graphql/src/results/mode.ts	47.05% <ø> (ø)
...kages/codemirror-graphql/src/utils/forEachState.ts	100.00% <ø> (ø)
packages/codemirror-graphql/src/utils/hintList.ts	95.65% <ø> (ø)
...ckages/codemirror-graphql/src/utils/mode-indent.ts	0.00% <0.00%> (ø)
packages/codemirror-graphql/src/variables/hint.ts	89.70% <ø> (ø)
packages/codemirror-graphql/src/variables/mode.ts	79.48% <ø> (ø)
packages/graphiql-react/src/editor/whitespace.ts	100.00% <ø> (ø)
packages/graphiql-toolkit/src/storage/query.ts	36.73% <ø> (ø)
... and 89 more

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[timsuchanek]

LGTM!

[github-actions]

The latest changes of this PR are not available as canary, since there are no linked changesets for this PR.