AccompanyingCourseWorkEdit: fix bug, remove goal one by one

(adding a temporary negative index on just created goals)

src/Bundle/ChillPersonBundle/Resources/public/vuejs/AccompanyingCourseWorkEdit/App.vue

@@ -50,10 +50,10 @@
          </div>
 
          <!-- results which **are** attached to an objective -->
-         <div v-for="g in goalsPicked" :key="g.id">
-               <div class="item-title" @click="removeGoal(g)">
-                  <span class="removable">{{ g.goal.title.fr }}</span>
-               </div>
+         <div v-for="g in goalsPicked" :key="g.goal.id">
+            <div class="item-title" @click="removeGoal(g)">
+               <span class="removable">{{ g.goal.title.fr }}</span>
+            </div>
             <div>
                <add-result :goal="g.goal" destination="goal"></add-result>
             </div>
@@ -428,11 +428,9 @@ export default {
          this.isExpanded = !this.isExpanded;
       },
       addGoal(g) {
-
          this.$store.commit('addGoal', g);
       },
       removeGoal(g) {
-
          this.$store.commit('removeGoal', g);
       },
       addEvaluation(e) {