fix: add missing import

Author: graphieros

app/components/Package/VersionDistribution.vue

@@ -8,7 +8,7 @@ import type {
 } from 'vue-data-ui'
 import { useElementSize } from '@vueuse/core'
 import { useCssVariables } from '~/composables/useColors'
-import { OKLCH_NEUTRAL_FALLBACK, transparentizeOklch } from '~/utils/colors'
+import { OKLCH_NEUTRAL_FALLBACK, transparentizeOklch, lightenHex } from '~/utils/colors'
 import {
   drawSvgPrintLegend,
   drawNpmxLogoAndTaglineWatermark,