TypeError in strict mode

[SimoTod]

Closes #132

When javascript runs in strict mode and there is an assignment when the reactivity is suspended (for example, using x-init), the proxy returns an error as per documentation:

The set method should return a boolean value. 
Return true to indicate that assignment succeeded. 
If the set method returns false, and the assignment happened 
in strict-mode code, a TypeError will be thrown.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy/handler/set#Return_value

Here's a codepen to reproduce the issue: https://codepen.io/SimoTod/pen/ZEYPrdQ

[calebporzio]

Great, thank you!