Improve add buttons

app/views/contests/show.html.slim

@@ -20,7 +20,7 @@
         h4
           = t("puzzles.plural").capitalize
           a.ms-3.btn.btn-primary href=new_contest_puzzle_path(@contest) style="margin-top: -3px"
-            = t("contests.show.add_puzzle")
+            | + #{t("helpers.buttons.add")}
     table.table.table-striped.table-hover
       thead
         tr
@@ -71,7 +71,7 @@
         h4
           = t("contestants.plural").capitalize
           a.ms-3.btn.btn-primary href=new_contest_contestant_path(@contest) style="margin-top: -3px"
-            = t("contests.show.add_participant")
+            | + #{t("helpers.buttons.add")}
     table.table.table-striped.table-hover
       thead
         tr

config/locales/en.yml

@@ -76,6 +76,7 @@ en:
       plural: "teams"
   helpers:
     buttons:
+      add: "Add"
       create: "Create"
       save: "Save"
   messages:

config/locales/fr.yml

@@ -47,6 +47,7 @@ fr:
       plural: "équipes"
   helpers:
     buttons:
+      add: "Ajouter"
       create: "Créer"
       save: "Modifier"
   messages: