fix: contractions handling in spellchecker

[code-elf]

This fixes #18459 by improving the handling of contractions in the spellcheck API. Specifically, it now accepts contraction words where the spellchecker recognizes the whole word, and not, as previously, just if it recognizes all of its parts.

Description of Change

Checklist

• PR description included and stakeholders cc'd
• npm test passes
• tests are changed
• relevant documentation is changed or added
• PR title follows semantic commit guidelines
• PR release notes describe the change in a way relevant to app developers, and are capitalized, punctuated, and past tense.

Release Notes

Notes: Spellcheck providers are now (again) called with contractions and their parts

[welcome]

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[nitsakh]

Thanks! 👍

[code-elf]

Removed a debug log I accidentally left in.

[MarshallOfSound]

Thanks for the fix 👍

[release-clerk]

Release Notes Persisted

Spellcheck providers are now (again) called with contractions and their parts

[welcome]

Congrats on merging your first pull request! 🎉🎉🎉

[trop]

I was unable to backport this PR to "5-0-x" cleanly;
you will need to perform this backport manually.

[trop]

I have automatically backported this PR to "6-0-x", please check out #18538

[trop]

A maintainer has manually backported this PR to "5-0-x", please check out #18548