message: fix packages not showing when no sellable attached
  fixes:
diff: <span
  class="tag tag-active"
  - v-if="sellables[ package.id ].primary"
  + v-if="sellables[ package.id ] && sellables[ package.id ].primary"
  v-app-tooltip="$gettext( `We use the primary package to determine the price to show on game listings.` )"
  >
  <translate>Primary Package</translate>
  <translate>Private</translate>
  </span>
  - <template v-if="sellables[ package.id ].type === 'pwyw'">
  + <template v-if="sellables[ package.id ] && sellables[ package.id ].type === 'pwyw'">
  <span class="tag tag-blue">
  <translate>Pay What You Want</translate>
  </span>
  <translate>Suggested Price</translate>
  </strong>
  &mdash;
  - <template v-if="sellables[ package.id ].pricings[0].amount">
  + <template v-if="sellables[ package.id ] && sellables[ package.id ].pricings[0].amount">
  {{ sellables[ package.id ].pricings[0].amount | currency }}
  </template>
  <template v-else>
  <translate>None</translate>
  </template>
  </template>
  - <template v-else-if="sellables[ package.id ].type === 'paid'">
  + <template v-else-if="sellables[ package.id ] && sellables[ package.id ].type === 'paid'">
  <span class="tag tag-blue">
  <translate>Paid</translate>
  </span>
  