chore: implement tree w/o list #27034

Job	Run time
Web Components	1m 48s
ubuntu-20.04 (chromium tip-of-tree)	12m 55s
Installation Test ubuntu-latest	10m 24s
ubuntu-22.04 (chromium - Node.js 18)	12m 17s
Installation Test macos-latest	10m 49s
ubuntu-22.04 (firefox - Node.js 18)	24m 7s
VSCode Extension	28m 34s
Test Runner (ubuntu-latest, 18, 1, 2)	29m 19s
Installation Test windows-latest	19m 39s
ubuntu-22.04 (webkit - Node.js 18)	16m 15s
ubuntu-22.04 (chromium - Node.js 20)	12m 37s
Test Runner (ubuntu-latest, 18, 2, 2)	5m 8s
ubuntu-22.04 (chromium - Node.js 22)	12m 1s
Test Runner (windows-latest, 18, 1, 2)	39m 41s
Test Runner (windows-latest, 18, 2, 2)	8m 4s
Test Runner (macos-latest, 18, 1, 2)	19m 17s
Test Runner (macos-latest, 18, 2, 2)	3m 17s
Test Runner (ubuntu-latest, 20, 1, 2)	27m 5s
Test Runner (ubuntu-latest, 20, 2, 2)	4m 34s
Test Runner (ubuntu-latest, 22, 1, 2)	27m 35s
Test Runner (ubuntu-latest, 22, 2, 2)	5m 12s
	5h 30m 38s

Provide feedback