Small cleanup and fixes

[proggga]

No description provided.

[CLAassistant]

All committers have signed the CLA.

[kolesnikovae]

Thank you @proggga! LGTM.

[codecov]

Codecov Report

Merging #453 (81eed83) into main (bac1171) will increase coverage by 0.07%.
The diff coverage is 41.67%.

@@            Coverage Diff             @@
##             main     #453      +/-   ##
==========================================
+ Coverage   51.51%   51.57%   +0.07%     
==========================================
  Files         125      125              
  Lines        5683     5734      +51     
==========================================
+ Hits         2927     2957      +30     
- Misses       2472     2488      +16     
- Partials      284      289       +5     

Impacted Files	Coverage Δ
pkg/storage/dimension/serialization.go	0.00% <0.00%> (ø)
pkg/storage/dict/serialize.go	58.70% <33.34%> (-2.66%)	⬇️
pkg/storage/dict/dict.go	75.76% <70.00%> (ø)
pkg/flameql/flameql.go	87.88% <100.00%> (ø)
pkg/storage/tree/tree.go	82.66% <100.00%> (+0.18%)	⬆️
pkg/server/handler.go	18.13% <0.00%> (-0.34%)	⬇️
pkg/agent/profiler/profiler.go	0.00% <0.00%> (ø)
pkg/analytics/analytics.go	87.02% <0.00%> (+0.53%)	⬆️
pkg/server/render.go	67.47% <0.00%> (+2.77%)	⬆️
pkg/agent/session.go	63.91% <0.00%> (+5.27%)	⬆️

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[petethepig]

Thank you @proggga. Congrats on your first Pyroscope PR!