Align towncrier and keywords

[jlaehne]

Update the order of towncrier categories and keywords similar to hyperspy/rosettasciio#196 and hyperspy/rosettasciio#199

Progress of the PR

• Change implemented (can be split into several points),
• ready for review.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8aabb0d) 87.27% compared to head (0d8e4b3) 87.27%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #19   +/-   ##
=======================================
  Coverage   87.27%   87.27%           
=======================================
  Files           7        7           
  Lines         330      330           
  Branches       73       73           
=======================================
  Hits          288      288           
  Misses         25       25           
  Partials       17       17           

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