docs: fix typo in typescript.mdx of repo-docs (#9674)
### Description
Corrected a minor typo in the docs/repo-docs/guides/tools/typescript.mdx
file of the documentation. This update ensures better readability and
accuracy for users.
### Testing Instructions
No specific testing is required, as this is a simple documentation
update.
To verify the change:
Navigate to docs/repo-docs/guides/tools/typescript.mdx.
Confirm that the typo has been corrected and the updated text appears as
expected.
