fix(wordsInput): adjust #wordsInput position to be on the active word for chinese (@NadAlaba)

[NadAlaba]

fix part of #6447

[sentry-io]

🔍 Existing Issues For Review

Your pull request is modifying functions with the following pre-existing issues:

📄 File: frontend/src/ts/test/test-ui.ts

Function	Unhandled Issue
updateWordsInputPosition	TypeError: Cannot read properties of null (reading 'style') ... Event Count: 6 Affected Users: 121

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[Miodec]

Thanks