[FIX] Prune messages not removing thumbnails

[LucianoPierdona]

Proposed changes (including videos or screenshots)

This PR adds a method on Uploads called findOneByName, and excludes a thumbnail of an image on cleanRoomHistory

Issue(s)

Fix #26287

Steps to test or reproduce

• Go to Prune Messages
• Click on Prune. After Prune completed successfully
• Go and click on Files
• All tumbnail files are still there

Further comments

[codecov]

Codecov Report

Merging #26443 (9f35134) into develop (b3bc896) will increase coverage by 0.22%.
The diff coverage is n/a.

❗ Current head 9f35134 differs from pull request most recent head cfbb93e. Consider uploading reports for the commit cfbb93e to get more accurate results

@@             Coverage Diff             @@
##           develop   #26443      +/-   ##
===========================================
+ Coverage    38.47%   38.70%   +0.22%     
===========================================
  Files          758      758              
  Lines        18823    18818       -5     
  Branches      1453     1461       +8     
===========================================
+ Hits          7243     7284      +41     
+ Misses       11363    11315      -48     
- Partials       217      219       +2     

Flag	Coverage Δ
e2e	38.70% <ø> (+0.22%)	⬆️

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[alekdimitrov]

Hi. Im sorry but I want open this issue again. I am on 5.2.3 version and issue is still not fixed.
Thanks.

p.p. 5.4.0