Table updates

[rosieyohannan]

Description

• Wrap all tables in div with table-scroll class that allows horizontal scroll
• Fix font size in tables - 18px for table header text
• Fix padding in table cells to 16px
• increase min width for columns to 100px

Reasons

Some table styling did not align with design
Some tables are too wide for the article width and need horizontal scroll. W don't have a great way to know which ones so we just allow all to scroll.

Content Checklist

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Please take a moment to check through the following items when submitting your PR (this is just a guide so will not be relevant for all PRs):

• Break up walls of text by adding paragraph breaks.
• Consider if the content could benefit from more structure, such as lists or tables, to make it easier to consume.
• Keep the title between 20 and 70 characters.
• Consider whether the content would benefit from more subsections (h2-h6 headings) to make it easier to consume.
• Check all headings h1-h6 are in sentence case (only first letter is capitalized).
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