gently trap graphql parse errors in the LS and LSP

[acao]

I introduced these accidentally and they have caused a lot of issues!

should fix #2376 and many others

[changeset-bot]

🦋 Changeset detected

Latest commit: 94076a3

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

This PR includes changesets to release 2 packages

Name	Type
graphql-language-service	Patch
graphql-language-service-server	Patch

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[github-actions]

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

[codecov]

Codecov Report

Merging #2378 (94076a3) into main (2d91916) will decrease coverage by 0.98%.
The diff coverage is 73.73%.

@@            Coverage Diff             @@
##             main    #2378      +/-   ##
==========================================
- Coverage   65.70%   64.72%   -0.99%     
==========================================
  Files          85       81       -4     
  Lines        5106     5324     +218     
  Branches     1631     1703      +72     
==========================================
+ Hits         3355     3446      +91     
- Misses       1747     1874     +127     
  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)
...ackages/codemirror-graphql/src/utils/info-addon.ts	1.02% <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/src/utility/fillLeafs.ts	5.33% <ø> (ø)
... and 76 more

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[acao]

for the longest time I had been blaming graphql-config - but this was my mistake when I introduced the externalFragments feature!