concatenate from and to

src/components/DictionaryView.vue

@@ -623,7 +623,7 @@ export default {
       let lang = this.previous.params.lang
       let from = this.previous.query.q
       let to = word
-      this.$plausible.trackEvent('similar link', {props: {lang, from, to , words: {from, to}}})
+      this.$plausible.trackEvent('similar link', {props: {lang, from, to , words: from + " => " + to}})
       this.event = null
       navigate_to_query(this, this.queryString)
     },