Add default sse method

CHANGELOG.md

@@ -21,7 +21,7 @@ We’ve overhauled Datastar in v0.21.0, doubling down on making nestable signals
 - Renamed the `data-bind` attribute to `data-attributes`.
 - Renamed the `data-model` attribute to `data-bind`.
 - Changed the `data-*` attribute modifier delimiter from `.` to `:` (`data-on-keydown:debounce_100ms:throttle_lead="value"`).
-- The the `get()`, `post()`, `put()`, and `delete()` plugins have been replaced by a single `sse()` plugin that accepts the method as an option (`sse(url, {method="get"})`).
+- The the `get()`, `post()`, `put()`, and `delete()` plugins have been replaced by a single `sse()` plugin that accepts the method as an option (`sse(url, {method: 'post'})`), defaulting to `get`.
 - The `setAll()` and `toggleAll` plugins now accept a dot-delimited path format, instead of a regular expression.
 
 ### Fixed