update: add separate ENV vars for component configs

[VietND96]

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Description

update: add separate ENV vars for component configs

Motivation and Context

• SE_HEALTHCHECK_INTERVAL maps to --healthcheck-interval (default is 120) - in Distributor, Hub, Standalone
• SE_NODE_HEARTBEAT_PERIOD maps to --heartbeat-period (default is 30) - in Node, Standalone
• SE_NODE_REGISTER_CYCLE maps to --register-cycle - in Node, Standalone

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.