Fix prop interpolation

What:

1) Change aria-label="{{`info-${id}`}}" to :aria-label="`info-${id}`"

Why:

1) Vue doesn't support interpolation inside regular attrs anymore

client/src/components/footer_nav_button/FooterNavButton.vue

@@ -6,7 +6,7 @@
       { 'footer-nav-button--dark': dark },
       { 'footer-nav-button--active': active }
     ]"
-    aria-label="{{`link to ${link}`}}"
+    :aria-label="`link to ${link}`"
   >
     <i :class="icon + ' footer-nav-button__icon'"></i>
   </v-btn>

client/src/components/info_slider/InfoSlider.vue

@@ -66,7 +66,7 @@
       </v-btn>
       <v-item-group v-model="onboarding" class="text-center" mandatory>
         <v-item v-for="n in length" :key="`btn-${n}`" v-slot:default="{ active, toggle }">
-          <v-btn aria-label="{{`slide-photo-${n}`}}" :input-value="active" icon @click="toggle">
+          <v-btn :aria-label="`slide-photo-${n}`" :input-value="active" icon @click="toggle">
             <v-icon>mdi-record</v-icon>
           </v-btn>
         </v-item>

client/src/store/index.ts

@@ -190,7 +190,7 @@ export default new Vuex.Store({
       commit('setAjaxInProgress', false);
     },
 
-    async setRankingsData({ commit, state }) {
+    async setRankingsData({ commit }) {
       commit('setAjaxInProgress', true);
       fetchRankingsData()
         .then(rankData => {