style: follow linter rules #15

Job	Run time
Build Wasm	1m 45s
Build Web UI / Build Treemap WebUI	35s
Tests (ubuntu-latest, unit)	1m 10s
Tests (ubuntu-latest, integration-example)	2m 23s
Tests (ubuntu-latest, integration-real)	3m 49s
Tests (windows-latest, unit)	3m 12s
Tests (windows-latest, integration-example)	4m 37s
Tests (windows-latest, integration-real)	8m 52s
Tests (macos-13, unit)	1m 47s
Tests (macos-13, integration-example)	6m 8s
Tests (macos-13, integration-real)	6m 35s
Tests (macos-14, unit)	1m 52s
Tests (macos-14, integration-example)	2m 52s
Tests (macos-14, integration-real)	3m 49s
Tests on UI	53s
Build go-size-analyzer explorer	33s
Deploy explorer to GitHub Pages	8s
Merge Go test results (ubuntu-latest)	2m 2s
Merge Go test results (windows-latest)	2m 12s
Merge Go test results (macos-13)	1m 59s
Merge Go test results (macos-14)	2m 0s
	59m 13s

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