Fix typo in Snaps JSX documentation (#1482)

Author: FrederikBolding

snaps/features/custom-ui/with-jsx.md

@@ -216,7 +216,7 @@ For use in [interactive UI](interactive-ui.md).
 - `name`: `string` - (Optional) The name that will be sent to [`onUserInput`](../../reference/entry-points.md#onuserinput)
   when a user selects the button.
 - `variant` - (Optional) Determines the appearance of the button.
-  Possible values are `"primary"` or `"secondary"`.
+  Possible values are `"primary"` or `"destructive"`.
   The default is `"primary"`.
 
 #### Example
@@ -732,4 +732,4 @@ await snap.request({
 
 <p align="center">
 <img src={require("../../assets/custom-ui-emojis.png").default} alt="Emojis UI example" width="450px" style={{border: "1px solid #DCDCDC"}} />
-</p>
+</p>