#5740 Re-arrange processing of newlines in quoted email

[martgil]

This PR re-arrange the processing of newlines in quoted email + remove style which results to "inline divs" that causes issue described in #5740.

close #5740

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Tests (delete all except exactly one):

• Test added or updated

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To be filled by reviewers

I have reviewed that this PR... (tick whichever items you personally focused on during this review):

• addresses the issue it closes (if any)
• code is readable and understandable
• is accompanied with tests, or tests are not needed
• is free of vulnerabilities
• is documented clearly and usefully, or doesn't need documentation

[martgil]

Hi @sosnovsky - I will also share another custom build with the reporting user to confirm the fix, in addition to my personal verification.

[martgil]

To test this one manually, in addition to the updated test:

1. ) Open any secure email on Gmail that the FlowCrypt extension can render.
2. ) Once a secure email from your inbox, click the "..." icon to see the quoted text part.
3. ) On the section where the line "On 202x-01-01 at 12:00, [email protected] wrote:" try to press enter and you'll get the desired newline compare with bugged version where div's after div's is injected due to the "inline-block" css property from the consumer build. The issue that happens when interacting onto the last instance of ">" in the quoted text part is also fixed.

[martgil]

Hi @sosnovsky - this one is ready for review. thank you!

[sosnovsky]

Works well 👍