Correct misspelled occurrences and occurred

[beatriz]

Fixes #27588

[msftclas]

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[msftclas]

@mbeatrizmagalhaes, thanks for signing the contribution license agreement. We will now validate the agreement and then the pull request.

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[aeschli]

Thanks a lot, @mbeatrizmagalhaes !
build/lib/typescript/typescriptServices.js and src/typings/electron.d.ts are both generated files that are not under our control and should not be modified. Can you remove the changes to these files?

[beatriz]

@aeschli I'm sorry, already removed those files!

[aeschli]

@mbeatrizmagalhaes Great!

I reviewed the changes. PR pushed.