placeholder for required strings

app/components/ViewRecipe.vue

@@ -433,7 +433,7 @@ export default {
     changeYield() {
       this.$showModal(PromptDialog, {
         props: {
-          title: `${localize("req")} ${localize(this.recipe.yield.unit)}`,
+          title: `${localize("req", localize(this.recipe.yield.unit))}`,
           placeholder: Math.abs(parseFloat(this.yieldMultiplier)),
           action: "SET",
         },

app/i18n/en-GB.default.json

@@ -155,7 +155,7 @@
   "rmCmb": "Combination removed",
   "nwYiU": "New yield unit",
   "nwCat": "New category",
-  "req": "Required",
+  "req": "Required %s",
   "recPic": "Recipe photo",
   "cPic": "Crop photo",
   "breakfast": "Breakfast",