Use find rather than get verbiage for spec helpers

What does this MR do?

Uses a find prefix to spec helpers which find elements or components rather than a somewhat ambiguous get prefix which could be confused with a GET API request, for example.

It also makes good sense to use find because the underlying functions being used are wrapper.find and wrapper.findComponent.

This is kind of a follow up to #288015 (closed) & !51003 (merged), and is inspired by this comment

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