Responsive Behavior - Consider down-sizing Text and Paragraph at breakpoints

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Discussion during office hours:

"Spacing and headings downsize at small breakpoint, however text and paragraph sizes do not. In some cases, this causes designs to fall out of balance between spacing and font size. A grid of cards would be a good example. The card's gap and padding step-down in size, but the text/paragraph sizing does not and creates a feeling of unbalanced proportions."

Consider enhancing Theme to step down Text and Paragraph sizing.

This work likely spans design, grommet, and grommet-theme-hpe and should be scoped/broken down accordingly.