Minor code style fixes and removed deprecated packages

[vania-pooh]

No description provided.

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (c160231) 51.86% compared to head (f139757) 51.38%.
Report is 1 commits behind head on master.

Files	Patch %	Lines
ggr-ui.go	25.00%	3 Missing ⚠️
main.go	50.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #68      +/-   ##
==========================================
- Coverage   51.86%   51.38%   -0.49%     
==========================================
  Files           3        3              
  Lines         214      216       +2     
==========================================
  Hits          111      111              
- Misses         89       90       +1     
- Partials       14       15       +1     

Flag	Coverage Δ
go	51.38% <37.50%> (-0.49%)	⬇️

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