backported "Refactor e2e JavaScript API commands to TypeScript function helpers" (#46952)

* Refactor e2e JavaScript API commands to TypeScript function helpers (#46934)

* Remove unused file

* Refactor getCurrentUser command to a TS function util

* Refactor createAlert command to a TS function util

* Refactor createModerationReview command to a TS function util

* Reuse createModerationReview

* Refactor createPulse command to a TS function util

* Remove references to deleted files

* Improve typing

* ESLint

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Co-authored-by: Kamil Mielnik <kamil@kamilmielnik.com>