Snowbridge Updates - Ethereum header cleanup MBM, runtime config cleanup & minor refactoring #10893

Job	Run time
check-dependency-rules	8s
check-workspace	20s
check-fail-ci	13s
check-markdown	17s
preflight / preflight	46s
preflight / ci-versions	1m 14s
check-rust-feature-propagation	2m 14s
check-umbrella	2m 40s
check-toml-format	1m 20s
fmt	1m 44s
test-rust-features	2m 7s
All quick checks passed	1s
	13m 4s

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