Update `plot_uncertainty_forecast` to support plotting kwargs

[codecov[bot]]

Codecov Report

Merging #143 (ef0036c) into main (d18b846) will increase coverage by 15.34%. The diff coverage is 100.00%.

@@             Coverage Diff             @@
##             main     #143       +/-   ##
===========================================
+ Coverage   78.77%   94.11%   +15.34%     
===========================================
  Files           5        5               
  Lines         358      357        -1     
===========================================
+ Hits          282      336       +54     
+ Misses         76       21       -55     

Impacted Files	Coverage Δ
src/basics.jl	96.96% <100.00%> (+65.62%)	:arrow_up:
src/threshold.jl	94.87% <0.00%> (+7.69%)	:arrow_up:
src/sensitivity.jl	100.00% <0.00%> (+14.03%)	:arrow_up:

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[ChrisRackauckas]

Seems like this breaks doc builds?