Fix: Corrected typos in documentation and BridgeForm.tsx

[cypherpepe]

Description

This PR fixes several typos and formatting issues in documentation files and code. Specifically:

• Corrected typos in multiple README.md files across the project (mainnnet to mainnet, helfpul to helpful, etc.).
• Fixed a typo in the BridgeForm.tsx component (Insufficent to Insufficient).
• Minor clarifications in variable naming and descriptions for better readability.

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Motivation & Context

These changes ensure consistent and professional documentation and code quality, addressing minor spelling mistakes that could confuse users or developers. Clear documentation enhances onboarding for new contributors.

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Code Review

• Focus on ensuring the corrected text does not unintentionally alter the intended meaning.
• Verify the updated text in BridgeForm.tsx aligns with UI expectations.

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Type of change

• 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 not work as expected)

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Checklist

• I have done a self-review of my own code.
• Any new and existing tests pass locally with my changes.
• My changes generate no new warnings (lint warnings, console warnings, etc.).

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