Add disconnection and minor improvements on login page.

frontend/src/app/pages/login/login.component.html

@@ -4,7 +4,7 @@
         <label for="email">
             Email address
         </label>
-        <input type="email" formControlName="email" required />
+        <input type="email" formControlName="email" autocomplete="email" required />
     </div>
     <div>
         <label for="password">
@@ -12,5 +12,7 @@
         </label>
         <input type="password" formControlName="password" required />
     </div>
-    <button type="submit">Send</button>
+    <div class="actions">
+        <button type="submit">Send</button>
+    </div>
 </form>