fix: improve thumbnail retrieval logic for rating nudge popup

[Tweekazoid]

thumbnail pro ratovane veci se nenacital

[codecov]

Codecov Report

❌ Patch coverage is 8.51064% with 43 lines in your changes missing coverage. Please review.
✅ Project coverage is 32.25%. Comparing base (73bdb20) to head (883309f).

Files with missing lines	Patch %	Lines
rating_nudge.py	8.69%	21 Missing ⚠️
ui.py	6.66%	14 Missing ⚠️
search.py	11.11%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2258      +/-   ##
==========================================
- Coverage   32.28%   32.25%   -0.04%     
==========================================
  Files          85       85              
  Lines       26653    26688      +35     
==========================================
+ Hits         8605     8608       +3     
- Misses      18048    18080      +32     

Flag	Coverage Δ
python	32.25% <8.51%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
search.py	26.48% <11.11%> (+0.03%)	⬆️
ui.py	26.92% <6.66%> (-0.79%)	⬇️
rating_nudge.py	70.70% <8.69%> (-10.79%)	⬇️

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