feat(frontend): normalise Results time units

[eatyourgreens]

Normalise all Results times to hours, for the time being.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.49%. Comparing base (c227f57) to head (c589338). Report is 23 commits behind head on ui-enhancements.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## ui-enhancements #583 +/- ## =================================================== + Coverage 76.17% 76.49% +0.31% =================================================== Files 108 109 +1 Lines 5600 5637 +37 =================================================== + Hits 4266 4312 +46 + Misses 1334 1325 -9 ```

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[sonarcloud[bot]]

Quality Gate passed for 'pkpdapp'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
89.1% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sonarcloud[bot]]

Quality Gate failed for 'pkpdapp-team_pkpdapp_frontend'

Failed conditions
0.0% Coverage on New Code (required ≥ 80%)
C Reliability Rating on New Code (required ≥ A)

See analysis details on SonarQube Cloud

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