Adding Expand all components - Applicant facing

[gobyrne]

Details

The goal is to have and "expand all" widget added to all places on our site where there are (or can be) 3 or more expandable sections.

The following locations have been identified as missing this "expand all" and can be addressed:

1. Advanced filters on Search page
2. Step 5 of the job application - Skills requirements - Required behavioural skills & Optional behavioural skills

The following pages meet the criteria above but are getting rebuilt soon anyway, so no need to address:

1. Ongoing recruitment section of the pools page (might get redesigned soon anyway)
   Skills sections of the job poster (don't do, this has been redesigned already)

The following locations have multiple expand all sections, but implementing an "expand all" is not so simple because the expandable components are inside cards or similar:

1. Step 3 of job application - Review your career timeline (this one is trickier - leave to later if needed)
2. Step 5 of the job application - Skills requirements - Required technical skills (this one might be trickier too - leave to later if needed)
3. Step 7 of job application - Your career timeline & Minimum experience & Skill Requirements (this one might be trickier too - leave to later if needed)
4. Profile - Career timeline page - Manage your career timeline & Qualified recruitment processes

Screenshots

[gobyrne]

Asking @Jerryescandon to handle the search page one. Job poster should be good now.