Post Card: omit ellipses if description is short enough already

If the text is below the maximum length, just show the whole thing
without adding a "..." at the end

src/components/Card.vue

@@ -67,6 +67,7 @@ export default {
   filters: {
     truncate: (text, length, suffix) => {
       if (!text) return text
+      if (text.length <= length) return text
       return text.substring(0, length) + suffix;
     },
     stripHTML: text => {