refact "cscli alerts"

[mmetc]

No description provided.

[codecov]

Codecov Report

Attention: 19 lines in your changes are missing coverage. Please review.

Comparison is base (332af5d) 57.74% compared to head (aef9ca5) 57.76%.

Files	Patch %	Lines
cmd/crowdsec-cli/alerts.go	78.40%	13 Missing and 6 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2827      +/-   ##
==========================================
+ Coverage   57.74%   57.76%   +0.01%     
==========================================
  Files         238      238              
  Lines       30867    30882      +15     
==========================================
+ Hits        17824    17838      +14     
- Misses      11395    11396       +1     
  Partials     1648     1648              

Flag	Coverage Δ
bats	37.66% <78.65%> (+0.01%)	⬆️
unit-linux	52.40% <ø> (+0.02%)	⬆️
unit-windows	47.80% <ø> (-0.02%)	⬇️

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