Option to make the description larger or use smaller font

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Is your feature request related to a problem? Please describe.
I'm frustrated when editing the card in the bigger view : I feel there's not enough space in the description even with the full width editor option.

Describe the solution you'd like
Either : the ability to have an even larger view of the card or the ability to use smaller font.

Describe alternatives you've considered

• I've tried using the full width editor option, it adds a few pixels to the editor, that's not nearly enough
• I've tried using the zoom out feature of my browser, but the width of the card gets smaller the more I zoom out

Additional context
none

No file or test is named. Start by locating the card's bigger-view description editor and the existing full-width editor option; clarify whether the intended result is a larger card, smaller text, or both, then verify the chosen behavior at common viewport sizes.