[Feature Request] injected notify function

[SeregPie]

Problem to solve

This feature is implemented in almost all other Vue frameworks. Snackbar is the only possible solution for now. But it's always one message at a time and you have to define a component.

Proposed solution

This is how it is implemented in other Vue frameworks.

• https://lusaxweb.github.io/vuesax/components/notifications.html
• https://www.iviewui.com/components/notice-en
• https://vuecomponent.github.io/ant-design/components/notification/
• http://element.eleme.io/#/en-US/component/notification
• https://quasar-framework.org/components/notify.html

In Vuetify this could be something like this:

this.$vuetify.notify({
  type: 'info',
  title: '...',
  message: '...',
  closable: true,
  timeout: 2000,
});

[KaelWD]

Duplicate of #3037, maybe also #2384

snackbar [...] always one message at a time

That is never going to change

[alamhubb]

重复＃3037，也许＃2384

snackbar [...]一次只有一条消息

这永远不会改变

why?

This is a strong demand from everyone. Why should we refuse? And don't give reasons