Fix missing investigation parameter labels

[louise-davies]

Description

See title. When testing DLS preprod with v2 he raised that there was a missing investigations.details.parameters.no_parameters label. So filling in that missing label and a related label I noticed was missing.

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.39%. Comparing base (20091c4) to head (ae7fce6).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1693   +/-   ##
========================================
  Coverage    95.39%   95.39%           
========================================
  Files          183      183           
  Lines         7932     7932           
  Branches      2535     2533    -2     
========================================
  Hits          7567     7567           
  Misses         330      330           
  Partials        35       35           

Flag	Coverage Δ
common	94.27% <ø> (ø)
dataview	97.32% <ø> (ø)
download	96.03% <ø> (ø)
search	93.58% <ø> (ø)

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