refactor(@angular/cli): use main element extraction for MCP doc search #1826

Job	Run time
lint	2m 23s
build	23s
e2e_windows (windows-2025, 22, npm, 1)	36s
e2e_windows (windows-2025, 22, npm, 5)	28s
e2e_windows (windows-2025, 22, esbuild, 0)	42s
e2e_windows (windows-2025, 22, npm, 3)	27s
e2e_windows (windows-2025, 22, npm, 0)	26s
e2e_windows (windows-2025, 22, npm, 4)	27s
e2e_windows (windows-2025, 22, esbuild, 5)	1m 31s
e2e_windows (windows-2025, 22, esbuild, 4)	1m 32s
e2e_windows (windows-2025, 22, esbuild, 3)	27s
e2e_windows (windows-2025, 22, esbuild, 2)	29s
e2e_windows (windows-2025, 22, esbuild, 1)	26s
e2e_windows (windows-2025, 22, npm, 2)	29s
Browser Compatibility Tests	0s
test	0s
publish-snapshots	0s
e2e-snapshots	0s
e2e-package-managers	-1s
e2e	-1s
	10m 44s

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