Refactor fetch with timeout to separate utility

[thornbill]

Moves the fetch with timeout functionality to a dedicated utility function for future reuse

[codecov[bot]]

Codecov Report

Merging #353 (92d5413) into master (5606893) will increase coverage by 0.49%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #353      +/-   ##
==========================================
+ Coverage   48.26%   48.75%   +0.49%     
==========================================
  Files          39       40       +1     
  Lines         719      722       +3     
  Branches      143      143              
==========================================
+ Hits          347      352       +5     
+ Misses        335      333       -2     
  Partials       37       37              

Impacted Files	Coverage Δ
utils/Fetch.js	100.00% <100.00%> (ø)
utils/ServerValidator.js	100.00% <100.00%> (+4.08%)	:arrow_up:

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[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
1.4% Duplication