LPS-31950 fix language keys for new Wiki UI

Since we are using these Language keys for the new UI showing activities for a specific page (we need the article 'THE' to make sense instead of the generic a/an). We also need restore instead delete since they are different actions. Right now, we don't log delete actions but we want to do it. This action is just for REMOVING, not for DELETING (they have a different meaining, something removed can be restored)