Allow "wire:ref" to be assigned to multiple targets

[intrepidws]

Is your feature request related to a problem? Please describe.
I have a page with many buttons, several of which (but not all of which) I would like to have trigger the same loading state. It appears that the relationship between wire:target and wire:ref is 1 to 1 and doesn't allow 1 to many.

Describe the solution you'd like
Perhaps just allowing a wire:ref to be assigned to multiple things at the same time?

Describe alternatives you've considered
As of now, at least as far as I can tell, the only solution is to create a specific loading state for each button.

Additional context
It might also be nice to allow a loading state to have multiple targets specified for wire:target.

[calebporzio]

Ok @intrepidws, after thinking about the various options. Here's what I think is best:

<button wire:ref="foo">
<button wire:ref="bar">

<div wire:loading wire:target="foo, bar">...</div>

I implemented this in the master branch. It will be available with the next release.

[intrepidws]

Cool, thanks @calebporzio