Remove top margin from Rich Paragraph text fields

[jakejackson1]

Description

This improves the display of Paragraph fields when the Rich Text feature is enabled

Resolves #1369

Testing instructions

See ticket #1369

Screenshots

Checklist:

• [x] I've tested the code.
• [x] My code is easy to read, follow, and understand
• [ ] My code follows the accessibility standards.
• [x] My code has proper inline documentation / docblocks.

Additional Comments

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 76.99%. Comparing base (703e0df) to head (d497b17). Report is 1 commits behind head on development.

Files	Patch %	Lines
src/View/html/PDF/core_template_styles.php	0.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## development #1500 +/- ## =============================================== - Coverage 77.01% 76.99% -0.02% =============================================== Files 243 243 Lines 12513 12516 +3 Branches 370 370 =============================================== Hits 9637 9637 - Misses 2868 2871 +3 Partials 8 8 ```

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