Can't update breakpoints

[johannes-z]

I have an application where the user can specify breakpoints to render different data. I cannot change the breakpoint at runtime however. Calling Vue.use(VueMq, { ... }) when it's already set doesn't do anything.

Something along the lines of this would be great:

Vue.use(VueMq, {
  breakpoints: { // default breakpoints - customize this
    sm: 450,
    md: 1250,
    lg: Infinity,
  }
  defaultBreakpoint: 'sm' // customize this for SSR
})

// in component
this.$mq.update('sm', 550)

[AlexandreBonaventure]

Hey @johannes-z, that is a good idea! Intending to implement

[zerdmann]

The ability to update the default here would be nice too.

[zeratul1]

Please check this PR #37