Make SonarCloud happier (#9545)

* Make SonarCloud happier

* i18n

* Iterate

* Update AddExistingToSpaceDialog.tsx

* Update SlashCommands.tsx

src/components/structures/MatrixChat.tsx

@@ -546,8 +546,6 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
     }
 
     private onAction = (payload: ActionPayload): void => {
-        // console.log(`MatrixClientPeg.onAction: ${payload.action}`);
-
         // Start the onboarding process for certain actions
         if (MatrixClientPeg.get()?.isGuest() && ONBOARDING_FLOW_STARTERS.includes(payload.action)) {
             // This will cause `payload` to be dispatched later, once a