ui: Icon for players

client/src/components/Player.vue

 <template>
   <div id="player" class="mr-5 ml-5">
     <b-badge :variant="Math.random() >= 0.5? 'dark' : 'danger'">
-      Player {{ name }}
+      <b-icon-person-square />
+      {{ name }}
     </b-badge>
     <b-img class="icon-card" v-for="index in nbCards" :key="index" fluid src="/img/unknown.svg" />
   </div>