Some fixes

[Azzaare]

Update dependencies

• LightGraphs -> Graphs

Fix signature for magnify with a default value :MIMO for the last argument.

Fix empty Symbol("") in sherlock_UI. It works with Shelock module, but not with Graphs. Still need more fixes?

[codecov-commenter]

Codecov Report

Merging #32 (62df5f0) into master (650f7a4) will decrease coverage by 0.31%. The diff coverage is 0.00%.

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@@            Coverage Diff            @@
##           master     #32      +/-   ##
=========================================
- Coverage    9.33%   9.03%   -0.31%     
=========================================
  Files           3       3              
  Lines         150     155       +5     
=========================================
  Hits           14      14              
- Misses        136     141       +5     

Impacted Files	Coverage Δ
src/visualizations.jl	0.00% <0.00%> (ø)

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