FIX: add missing string (#121)

assets/javascripts/discourse/templates/components/json-file-uploader.hbs

@@ -6,7 +6,7 @@
   </div>
   <div class="jsfu-separator">
     <small>
-      {{i18n "alternation"}}
+      {{i18n "explorer.or"}}
     </small>
   </div>
   <div class="jsfu-paste">

config/locales/client.en.yml

@@ -5,6 +5,7 @@ en:
         no_semicolons: "Remove the semicolons from the query."
         dirty: "You must save the query before running."
     explorer:
+      or: "or"
       admins_only: "The data explorer is only available to admins."
       allow_groups: "Allow groups to access this query"
       title: "Data Explorer"