Improve formatting of the the QL spectra

[samaloney]

This PR fixes a small issue with the formatting of the the QL detector spectra and improves some other aspects of the data product.

[codecov-commenter]

Codecov Report

Base: 80.85% // Head: 80.88% // Increases project coverage by +0.02% :tada:

Coverage data is based on head (bfae1bd) compared to base (432419b). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #294 +/- ## ========================================== + Coverage 80.85% 80.88% +0.02% ========================================== Files 62 63 +1 Lines 5927 6271 +344 ========================================== + Hits 4792 5072 +280 - Misses 1135 1199 +64 ``` | [Impacted Files](https://codecov.io/gh/i4Ds/STIXCore/pull/294?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=i4Ds) | Coverage Δ | | |---|---|---| | [stixcore/products/level0/quicklookL0.py](https://codecov.io/gh/i4Ds/STIXCore/pull/294?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=i4Ds#diff-c3RpeGNvcmUvcHJvZHVjdHMvbGV2ZWwwL3F1aWNrbG9va0wwLnB5) | `84.75% <100.00%> (-0.04%)` | :arrow_down: | | [stixcore/processing/publish.py](https://codecov.io/gh/i4Ds/STIXCore/pull/294?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=i4Ds#diff-c3RpeGNvcmUvcHJvY2Vzc2luZy9wdWJsaXNoLnB5) | `81.28% <0.00%> (ø)` | | | [stixcore/io/fits/processors.py](https://codecov.io/gh/i4Ds/STIXCore/pull/294?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=i4Ds#diff-c3RpeGNvcmUvaW8vZml0cy9wcm9jZXNzb3JzLnB5) | `75.96% <0.00%> (+0.20%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=i4Ds). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=i4Ds)

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[samaloney]

Good question I'll have to look into it

[samaloney]

So the change in the time are real as best I can tell the data is now in good shape so going to merge.