[compiler] Fix error description inconsistency (#34404)

Small fix to make all descriptions consistently printed with a single
period at the end.

Ran `grep -rn "description:" packages/babel-plugin-react-compiler/src
--include="*.ts" --exclude-dir="__tests__" | grep '\.\s*["\`]'` to find
all descriptions ending in a period and manually fixed them.

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[//]: # (BEGIN SAPLING FOOTER)
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* #34409
* __->__ #34404

DiffTrain build for [80d7aa17ad42efccc0ff95d2a9147ac6efe74dd5](https://github.com/facebook/react/commit/80d7aa17ad42efccc0ff95d2a9147ac6efe74dd5)