fix: pdf sender margins - avoid barcode intrusion

[AndriyFil]

Hello, and thanks for contributing to PplMyApi

tldr

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Description

Hi, I've changed margins for pdf document because of the bug I have
Before:

After:

Checklist

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• fixing typos
• documentation
• bug fix
• new feature
• other

Fixing typos

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Documentation

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Bug Fix

• All existing unit tests are still passing (if applicable)
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New Feature

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• Run unit tests to ensure all existing tests are still passing
• Add new passing unit tests to cover the code introduced by your PR
• Update the readme (see readme advice)

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Readme advice

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