fixes for vikidia.org to avoid error "unable to hack startup module"

[pavel-karatsiuba]

Replacing script.src with an empty string if it contains load.php
Added test for getting articles from vikidia.org

fixes #1778

[codecov]

Codecov Report

Base: 69.64% // Head: 70.31% // Increases project coverage by +0.66% 🎉

Coverage data is based on head (2c75a30) compared to base (89abe74).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1783      +/-   ##
==========================================
+ Coverage   69.64%   70.31%   +0.66%     
==========================================
  Files          23       23              
  Lines        2583     2584       +1     
  Branches      590      590              
==========================================
+ Hits         1799     1817      +18     
+ Misses        674      661      -13     
+ Partials      110      106       -4     

Impacted Files	Coverage Δ
src/config.ts	100.00% <ø> (ø)
src/util/const.ts	100.00% <100.00%> (ø)
src/util/dump.ts	76.62% <100.00%> (ø)
src/Downloader.ts	59.87% <0.00%> (+0.61%)	⬆️
src/util/saveArticles.ts	81.28% <0.00%> (+1.06%)	⬆️
src/util/articleRenderers.ts	71.27% <0.00%> (+9.57%)	⬆️

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[kelson42]

LGTM