[Bug] Alert ignoring initial v-model value.

[SeregPie]

Hello.

Just a small bug, but it is annoying. Alert, Modal etc. are visible/invisible per default at the beginning, ignoring initial value of v-model and changes their visibility only on the next value change.

There should be default value for value.

value: {type: Boolean, default: true} // alert
value: {type: Boolean, default: false} // modal

And then there are 2 ways to fix it.

1. QAlert.vue#L86: init active in data function

data() {
  return {active: this.value};
}

2. QAlert.vue#L90: immediate value watcher

value: {
  handler(v) { ... },
  immediate: true,
}

[rstoenescu]

Can't see this issue with Modal.

Fix for Alert available in edge and future v0.14.7.