feat: option to sign out all workspaces (#1005)

* feat: option to sign out all workspaces

* style: prettier width 120

* chore: bump snjs

app/assets/javascripts/Components/Preferences/PreferencesViewWrapper.tsx

@@ -11,7 +11,7 @@ export interface PreferencesViewWrapperProps {
 
 export const PreferencesViewWrapper: FunctionComponent<PreferencesViewWrapperProps> = observer(
   ({ appState, application }) => {
-    if (!appState.preferences.isOpen) {
+    if (!appState.preferences?.isOpen) {
       return null
     }