v0.1.9

Complete the indigo, cyan, lime and pink palettes (shades 4-8). Previously these were partial (cyan 6/8, indigo 6) or missing (lime, pink), so referencing var(--astral-color-{name}-5/6/7) yielded an invalid value that dropped the whole CSS shorthand (e.g. card borders rendered with no outline). Now filled out with the standard open-color values to match the other palettes.