add missing hidden-field for 'id' in emails_edit.tpl

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>

templates/Froxlor/customer/email/emails_edit.tpl

@@ -21,6 +21,7 @@ $header
 					<input type="hidden" name="s" value="$s" />
 					<input type="hidden" name="page" value="$page" />
 					<input type="hidden" name="action" value="$action" />
+					<input type="hidden" name="id" value="$id" />
 					<input type="hidden" name="send" value="send" />
 				</p>
 			</fieldset>