Typos fix

[teenager-ETH]

Pull Request: Typos Fix

Description

This pull request addresses two minor typos in the Lodestar project. These corrections improve code readability and align with standard spelling conventions.

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Changes Made

1. File Updated: packages/beacon-node/src/chain/blocks/importBlock.ts

   • Line Modified:
     • Original: previos
     • Updated: previous

2. File Updated: packages/beacon-node/src/chain/blocks/verifyBlocksDataAvailability.ts

   • Line Modified:
     • Original: propogate
     • Updated: propagate

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