Fix CSS style of exported documents

[Komediruzecki]

Current behavior

The team cloud workspace storage - boosthub exports the PDF differently than boostnote.next. The boosthub application exports the code blocks (either blocks or idented code block) with background vs text impossible to read (no contrast). The boostnote.next exports the code blocks correctly.

Expected behavior

The applications should export the note to PDF the same, or at least boosthub should export it correctly.

Steps to reproduce

1. Create team storage
2. Create boostnote.next storage (fs or cloud, doesn't matter)
3. Add the note: issue_cloud_boost_md.txt
4. Export from both storages to PDF

Result is:

• Boosthub:
• Boostnote.next:

And PDF files:
issue_boostnote_test-pdf-export.pdf.pdf
issue_cloud_test-pdf-export.pdf

Environment

Desktop/Web

• Boost Note.next version: v0.11.6
• OS version and name: Ubuntu 20.04

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[Rokt33r]

Not only pdf exporting, html exporting also has the same issue.

[issuehunt-oss[bot]]

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