Improve the log ouput on the UI

[LinuxSuRen]

No description provided.

[codecov-commenter]

Codecov Report

Merging #12 (7aea771) into master (4dde766) will increase coverage by 1.20%.
The diff coverage is 25.00%.

@@            Coverage Diff             @@
##           master      #12      +/-   ##
==========================================
+ Coverage   23.64%   24.85%   +1.20%     
==========================================
  Files           7        8       +1     
  Lines         313      334      +21     
==========================================
+ Hits           74       83       +9     
- Misses        238      250      +12     
  Partials        1        1              

Flag	Coverage Δ
unittests	24.85% <25.00%> (+1.20%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/sender.go	7.89% <0.00%> (-0.22%)	⬇️
pkg/waiter.go	0.00% <0.00%> (ø)
ui/server/http-server.go	50.00% <50.00%> (ø)

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