fixing copyright (#235)

Author: Varun-Sethu

frontend/src/components/Footer.vue

@@ -50,7 +50,7 @@
             <br />
             <a href="mailto:[email protected]"> [email protected] </a>
           </div>
-          © 2021 — CSESoc UNSW
+          © {{new Date().getFullYear()}} — CSESoc UNSW
         </v-col>
       </v-row>
     </v-container>