remove unused vars/aliases and fix bug where first authentication doesn't decrypt link

assets/js/pages/AuthPage.tsx

@@ -75,6 +75,10 @@ const AuthPage = (props: AuthPageProps) => {
       alert("Could not find intended link in URL");
       return null;
     }
+    if (!user) {
+      // no need to retrieve link if they weren't authenticated
+      return null;
+    }
 
     const linkResponse = await fetch(`/links/${linkId}`);
     let linkData: IntendedLink | null;

assets/js/pages/ForPage.tsx

@@ -95,6 +95,7 @@ const ForPage = (props: ForPageProps) => {
             value={serviceSelect}
           >
             <option value="github">Github</option>
+            <option value="google">Gmail</option>
           </Select>
           <Spacer space="3rem" />
           <SpaceBetweenContainer>