feat:密码框支持黏贴不支持复制功能及切换密码显示隐藏

@@ -19,8 +19,10 @@
             type="password"
             size="medium"
             placeholder="请输入密码"
-            onpaste="return false"
+            oncopy="return false"
+            onpaste="return true"
             class="login-input"
+            show-password
             :maxlength="inputMaxLength"
             v-model.trim="loginForm.password"
           )