Update mock data values, and reorder lifetime field

[asuresh-code]

Description

Following recent changes in the complementary frontend PR. Main Actions are:

• changing data rages for expected lifetime field in mock data script
• changing order of the field in the items Schema/mode/etc, to reflect frontend changes.

Testing instructions

Add a set up instructions describing how the reviewer should test the code

• Review code
• Check Actions build
• Review changes to test coverage
• {more steps here}

Agile board tracking

connect to #338

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.87%. Comparing base (88ee7ab) to head (71dc1c4).
Report is 12 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #410   +/-   ##
========================================
  Coverage    97.87%   97.87%           
========================================
  Files           41       41           
  Lines         1504     1504           
========================================
  Hits          1472     1472           
  Misses          32       32           

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[joelvdavies]

Thanks for aligning them.