Make `setMaintainVisibleContentPosition` and `MaintainVisibleScrollPositionHelper` internal #40085

Job	Run time
lint	2m 6s
check_code_changes	11s
set_release_type	3s
build_android	12m 23s
prebuild_react_native_core	0s
prebuild_apple_dependencies	0s
build_debugger_shell	0s
test_ios_rntester_dynamic_frameworks	0s
test_ios_helloworld_with_ruby_3_2_0	0s
test_ios_rntester_ruby_3_2_0	0s
test_ios_helloworld	0s
test_ios_rntester	0s
test_e2e_ios_rntester	0s
test_e2e_ios_rntester_retry_1	0s
test_e2e_ios_rntester_retry_2	0s
build_fantom_runner	11m 16s
build_js_types	1m 8s
test_js (24)	3m 25s
test_js (22.13.0)	3m 53s
test_e2e_android_rntester / test (release)	19m 0s
build_npm_package	2m 32s
test_e2e_android_rntester / test (debug)	7m 35s
run_fantom_tests / test	2m 51s
test_android_helloworld (Release)	5m 36s
test_android_helloworld (Debug)	4m 41s
test_e2e_android_templateapp / test (release)	7m 10s
test_e2e_android_templateapp / test (debug)	7m 23s
test_e2e_ios_templateapp	0s
test_e2e_ios_templateapp_retry_1	0s
test_e2e_ios_templateapp_retry_2	-1s
run_fantom_tests / report	4s
run_fantom_tests_retry_1	0s
run_fantom_tests_retry_2	-1s
test_e2e_android_templateapp / report	4s
test_e2e_android_templateapp_retry_1	-1s
test_e2e_android_templateapp_retry_2	-1s
test_e2e_android_rntester / report	3s
test_e2e_android_rntester_retry_1 / test (debug)	7m 25s
test_e2e_android_rntester_retry_1 / test (release)	7m 17s
test_e2e_android_rntester_retry_1 / report	3s
test_e2e_android_rntester_retry_2	0s
	1h 46m 5s

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