fix: xy data with discontinuous x

[andcastillo]

Solve the issue by getting the zones at before calling xyReduce.

Related to #2820

[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (12d03b8) 2.19% compared to head (000d393) 2.31%.
Report is 10 commits behind head on main.

Files	Patch %	Lines
src/component/hooks/useXYReduce.ts	0.00%	8 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##            main   #2825      +/-   ##
========================================
+ Coverage   2.19%   2.31%   +0.12%     
========================================
  Files        639     643       +4     
  Lines      62469   63059     +590     
  Branches     690     701      +11     
========================================
+ Hits        1369    1461      +92     
- Misses     60512   61008     +496     
- Partials     588     590       +2     

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[lpatiny]

After discussion we will check if the x values are ok in nmr-load-save and will currently not deal with non continuous X because other algorithms would crash or give unexpected results.