Little changes on forms presentation

backend/templates/sign_in_form.html

@@ -10,9 +10,11 @@
         <label for="input-email">{{ context.tr.t(Sentence::EmailAddress) }}</label>
         <input id="input-email" type="email" name="email" value="{{ email }}"
             autocapitalize="none" autocomplete="email" autofocus="autofocus">
+        <span></span>
 
         <label for="input-password">{{ context.tr.t(Sentence::Password) }}</label>
         <input id="input-password" type="password" name="password" autocomplete="current-password">
+        <span></span>
 
         <input type="submit" value="{{ context.tr.t(Sentence::SignInMenu) }}">
     </form>