fix: update typo in web-components.md (#1603)

There was a typo, it should be `detail` instead of `details`

Author: tomaszwylezek

src/guide/extras/web-components.md

@@ -151,7 +151,7 @@ document.body.appendChild(
 
 #### Events
 
-Events emitted via `this.$emit` or setup `emit` are dispatched as native [CustomEvents](https://developer.mozilla.org/en-US/docs/Web/Events/Creating_and_triggering_events#adding_custom_data_%E2%80%93_customevent) on the custom element. Additional event arguments (payload) will be exposed as an array on the CustomEvent object as its `details` property.
+Events emitted via `this.$emit` or setup `emit` are dispatched as native [CustomEvents](https://developer.mozilla.org/en-US/docs/Web/Events/Creating_and_triggering_events#adding_custom_data_%E2%80%93_customevent) on the custom element. Additional event arguments (payload) will be exposed as an array on the CustomEvent object as its `detail` property.
 
 #### Slots