Fix warnings in explorer

[lrennels]

No description provided.

[codecov]

Codecov Report

Merging #763 into master will decrease coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #763      +/-   ##
==========================================
- Coverage   78.74%   78.70%   -0.05%     
==========================================
  Files          35       35              
  Lines        2969     2968       -1     
==========================================
- Hits         2338     2336       -2     
- Misses        631      632       +1     

Flag	Coverage Δ
#unittests	78.70% <ø> (-0.05%)	⬇️

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Impacted Files	Coverage Δ
src/core/defcomp.jl	81.65% <0.00%> (-0.70%)	⬇️

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[lrennels]

@ckingdon95 just some code to clean up some warnings, I think the code coverage change is erroneous since I really didn't change much but will address that in my code coverage branch if needed

[lrennels]

@davidanthoff turns out to be a small PR since the main error was in Electron.jl but this will clean things up nonetheless