Add opt out for mirroring structuredContent into Content automatically #3631

Job	Run time
checks / readme-snippets	15s
checks / docs	1m 6s
checks / pre-commit	58s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 22s
checks / test (3.12, locked, windows-latest)	1m 45s
checks / test (3.11, locked, windows-latest)	1m 46s
checks / test (3.12, lowest-direct, windows-latest)	1m 57s
checks / test (3.10, locked, windows-latest)	1m 56s
checks / test (3.11, lowest-direct, windows-latest)	1m 54s
checks / test (3.13, locked, ubuntu-latest)	1m 6s
checks / test (3.13, locked, windows-latest)	2m 6s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 34s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 7s
checks / test (3.12, locked, ubuntu-latest)	1m 38s
checks / test (3.10, lowest-direct, windows-latest)	1m 59s
checks / test (3.14, locked, windows-latest)	1m 53s
checks / test (3.13, lowest-direct, windows-latest)	2m 11s
checks / test (3.10, locked, ubuntu-latest)	1m 34s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.14, locked, ubuntu-latest)	1m 19s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 20s
checks / test (3.14, lowest-direct, windows-latest)	1m 56s
checks / test (3.11, locked, ubuntu-latest)	1m 24s
all-green	3s
	35m 33s

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