Replace "Search and Replace" with "Find and Replace"

[captainsafia]

@ellisonbg recommends that we rename the "Search and Replace" with "Find and Replace" to maintain consistency across editors that use a similar language to describe that functionality. I can give this one a go.

cc/ @Carreau

[Carreau]

Sure, I would appreciate if this could be done after #329 that would conflict with such changes.

[Carreau]

(you can review/test #329 if you like)