hx-ext="sse" elements should include hx-vals attributes as query params

I want to be able send some dynamic query params as part of an sse request like so:
```

Start in src/sse/sse.js at the EventSource connection handling around lines 178-185 and 191-192, then reproduce the example using sse-connect and hx-vals="js:{dynamicValue: foo()}". Confirm that the generated connection URL includes the hx-vals values as query parameters while retaining the existing sse-connect behavior.

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