Fix: Download button not present on file viewer

[timotheeguerin]

fix #1861

[codecov]

Codecov Report

Merging #1864 into stable will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           stable    #1864      +/-   ##
==========================================
+ Coverage   61.62%   61.63%   +<.01%     
==========================================
  Files         970      970              
  Lines       26457    26457              
  Branches     4846     4846              
==========================================
+ Hits        16305    16306       +1     
+ Misses      10115    10114       -1     
  Partials       37       37

Impacted Files	Coverage Δ
...iewer-container/file-viewer-container.component.ts	84.21% <0%> (+1.31%)	⬆️

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