Add aria label to viZ naviation tiles

src/components/ChartIcon.vue

 <template>
     <div class="chart" :class="{ 'active': active }">
-        <RouterLink :to="vizRoute ? { name: 'SubPage', params: { projectRoute, vizRoute } } : { name: 'ProjectPage', params: { projectRoute } }">
+        <RouterLink :to="vizRoute ? { name: 'SubPage', params: { projectRoute, vizRoute } } : { name: 'ProjectPage', params: { projectRoute } }" :aria-label="vizRoute">
             <img v-if="vizRoute" :src="src" :alt="alt" />
             <div v-if="!vizRoute" id="overlay">
                 <p class='overlay-text'>Project info</p>