Also fixed issue with Vue resource encoding + in search term

Previously was disabled until any list was present (except for done) this now takes into account the welcome blank state

Closes #27931

Closes #23026

Closes #22710

Closes #22852

Closes #23763

Originally created to address #21197, but !6224 solved the intermittent spec
failures.

Added wait for vue helper

Vue resource is kindly encoding our URL params but Rails sadly doesn't seem to understand them.

Closes #21920

Closes #21417

Only visible when scrollable area is larger than height

Closes #21139

Closes #21071

It wasnt testing what it was saying it should be...