Suggestion: Shortcut for `hx-post` using a configurable parameter

Hi!

I frequently use the `hx-post=` attribute in my projects and was wondering if it would be possible to introduce a shortcut for this parameter, such as `hx=`, which could be configured through JavaScript settings.

For example:

```js
hxMainParam = "post"; // or "get", "put", ...
```

This would allow us to define the main method (e.g., POST or GET) globally, simplifying the use of HTMX in different contexts.

Thanks in advance!