Grapher redesign: Move single data column closer to the entity column

[sophiamersmann]

Moves the data column closer to the entity column for tables that have a single data column only, see Figma for a design.

• This is done by setting a minimum width on the column, and a maximum width on the content within that column
• To find an appropriate maximum width, I need to know the width of the content (if the maximum width is smaller than the content, then the values wouldn't be aligned on the right)
• Instead of measuring the width of all displayed data values, I only measure the width of the minimum and the maximum value

I'd prefer a css-only solution but I couldn't think of one. @samizdatco feel free to edit/merge/close as you please.

[github-actions]

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[sophiamersmann]

Merging this now for lack of time for finding a better solution