fix: remove incorrect isUserAction=false from apiModelId sync

The useEffect that syncs apiModelId with selectedModelId was incorrectly
passing isUserAction=false, which prevented the save button from enabling
when users selected a different model. Since this effect responds to all
selectedModelId changes (including user selections), it should use the
default isUserAction=true behavior.

Author: daniel-lxs

webview-ui/src/components/settings/ApiOptions.tsx

@@ -190,7 +190,7 @@ const ApiOptions = ({
 	// Update `apiModelId` whenever `selectedModelId` changes.
 	useEffect(() => {
 		if (selectedModelId && apiConfiguration.apiModelId !== selectedModelId) {
-			setApiConfigurationField("apiModelId", selectedModelId, false)
+			setApiConfigurationField("apiModelId", selectedModelId)
 		}
 	}, [selectedModelId, setApiConfigurationField, apiConfiguration.apiModelId])