fix(stable32): add missing return null to exec() in openInLibreSignAction

Signed-off-by: Vitor Mattos <[email protected]>

Author: vitormattos

src/actions/openInLibreSignAction.js

@@ -64,6 +64,7 @@ export const action = {
 		const node = nodes[0]
 		await window.OCA.Files.Sidebar.open(node.path)
 		window.OCA.Files.Sidebar.setActiveTab('libresign')
+		return null
 	},
 
 	/**