Possible UX improvements on new context listing page
## Problem/motivation
Follow up to:
#3586219
Pasting from UX review call on 17 June:
1. Collapse Use Cases and Scope columns
Order pills in order shown on the edit page (e.g. Use Cases first)
2. Filters
- Remove Use Cases filter
- Change how Scope filter works
- One dropdown with the scope names, e.g. Use Cases, Site Sections, etc (ordered by order on edit page)
- Dropdown defaults to "All"
- Second dropdown that shows the values from what you choose from first drop down
- All shows all values like now
- if you choose a specific scope name, then it will restrict to that one, e.g. choose Use Cases, then shows only Use Cases in the values dropdown


## Solution
Review context listing UX and finalize changes and implement those.
## Tasks
- [x] UX review
- [x] Decide on changes
- [ ] Update code
- [ ] Review and test
## AI usage
- [ ] AI assisted issue
- [ ] AI assisted code
issue