removing nan from properties query

[AndresOrtegaGuerrero]

This PR fixes #905

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 67.15%. Comparing base (b0cfdbd) to head (3a35ed9).
Report is 115 commits behind head on main.

Files with missing lines	Patch %	Lines
src/aiidalab_qe/app/utils/search_jobs.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #906   +/-   ##
=======================================
  Coverage   67.15%   67.15%           
=======================================
  Files          51       51           
  Lines        4707     4707           
=======================================
  Hits         3161     3161           
  Misses       1546     1546           

Flag	Coverage Δ
python-3.11	67.15% <0.00%> (ø)
python-3.9	67.18% <0.00%> (ø)

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[superstar54]

LGTM!

Also interesting to see which calculation has property as None, and what the issue there.