Change Default Search Option on Collection & Item Page

Description: Change the default option for a user when they are within a collection from “Search this collection” to “Search all collections”. See Image 116.1 for details. Issue #24 (closed) may be related to this.

Documentation (More Info): https://docs.google.com/document/d/1Qs3KeqAcVzwCSwZyp4Mq6-WOMHY5eyEoxwx0G__JE8w/edit?usp=sharing