Localize more dates and texts (#341)

* Localize more dates and texts

* Adapt source language to 4-letter code for VS code

* Make page titles more reactive to language change

* Translate missing text + fix missed refactoring

* Fix missed page titles refactoring

* Translate nutrition view

* Translate Image upload vue

* Fix default text being defined twice in upload btn

frontend/src/components/MealPlan/MealPlanNew.vue

@@ -3,7 +3,7 @@
     <v-card-title class=" headline">
       {{ $t("meal-plan.create-a-new-meal-plan") }}
       <v-btn color="info" class="ml-auto" @click="setQuickWeek()">
-        <v-icon left>mdi-calendar-minus</v-icon> Quick Week
+        <v-icon left>mdi-calendar-minus</v-icon> {{$t('meal-plan.quick-week')}}
       </v-btn>
     </v-card-title>
 
@@ -110,7 +110,6 @@ export default {
         this.meals.push({
           slug: "empty",
           date: this.getDate(i),
-          dateText: this.getDayText(i),
         });
       }
     },
@@ -193,10 +192,6 @@ export default {
       );
       return dateText;
     },
-    getDayText(index) {
-      const dateObj = this.processTime(index);
-      return utils.getDateAsText(dateObj);
-    },
     getDate(index) {
       const dateObj = this.processTime(index);
       return utils.getDateAsPythonDate(dateObj);