Map param.Bytes to FileInput widget

[philippjfr]

Implements #2901

[codecov]

Codecov Report

Merging #5665 (862c678) into main (9df8f1e) will increase coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #5665      +/-   ##
==========================================
+ Coverage   73.61%   73.69%   +0.08%     
==========================================
  Files         288      288              
  Lines       41899    41899              
==========================================
+ Hits        30842    30877      +35     
+ Misses      11057    11022      -35     

Flag	Coverage Δ
unitexamples-tests	73.69% <ø> (+0.08%)	⬆️

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

Files	Coverage Δ
panel/param.py	85.67% <ø> (ø)

... and 9 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more