feat: Retired workflow on the list policy screens

[zwidekalanga]

For all changes

• Ensure adequate tests are in place (or reviewed existing tests cover changes)

Only if submitting a visual change

• Ensure to attach screenshots
• Ensure to have UX team confirm screenshots

[brobro10000]

Approved with a minor nit

[adamstankiewicz]

@zwidekalanga In addition to the Figma mock discrepancies mentioned above regarding the "Learner Credit Management" budgets overview page route, it doesn't look like this PR is tackling anything from the Figma mocks on the budget detail page route.

• budget detail page header (Figma)
• budget detail page "Assigned" table (Figma)
  • Heading changed to "Incomplete assignments"; help text also changed.
  • "Amount" column shows price as having a strikeout.
  • "Status" column is "Incomplete" (this would require likely API changes to the assignments list API, though, unless we opt to make this a frontend-only change; that said, I might prefer relying on the API changes so API-only customers still have the appropriate assignment state of "incomplete").
• budget detail page "Spent" table help text.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.35%. Comparing base (f3ee5ea) to head (d67bee6).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1213      +/-   ##
==========================================
+ Coverage   85.33%   85.35%   +0.01%     
==========================================
  Files         537      537              
  Lines       11695    11709      +14     
  Branches     2472     2480       +8     
==========================================
+ Hits         9980     9994      +14     
  Misses       1663     1663              
  Partials       52       52              

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