Fix psammead-paragraph styling

[bcmn]

Part of #124?

Font size was being imported with T_ prefix, not GEL_ prefix. Doing this fixes the issue described in 124, but there may be additional issues that haven't been captured in that ticket?

Should this block Simorgh#1051?

npm run storybook
visit http://localhost:8080/
Navigate to Paragraph component
View broken styles (on `latest`)
Repeat for this branch `fix_paragraph_styling` Styles should be fixed

• I have assigned myself to this PR and the corresponding issues
• Tests added for new features
• Test engineer approval

[sareh]

Thanks for the fix!

[ChrisBAshton]

Code looks good 👍 Have added blocked label to #997.

Could you add some explicit test instructions so James knows what we're looking at?

npm run storybook
visit http://localhost:8080/
Navigate to Paragraph component
View broken styles (on `latest`)
Repeat for this branch (styles fixed)