fix(EditHistory): sensitive -> activatable

looks better than making them dim

src/API/Account.vala

@@ -61,7 +61,7 @@ public class Tooth.API.Account : Entity, Widgetizable {
             });
         }
 
-       return res;
+        return res;
     }
 
 	public static Account from (Json.Node node) throws Error {

src/Views/EditHistory.vala

@@ -12,7 +12,7 @@ public class Tooth.Views.EditHistory : Views.Timeline {
 		var widget_status = widget as Widgets.Status;
 
 		widget_status.actions.visible = false;
-		widget_status.sensitive = false;
+		widget_status.activatable = false;
 
 		return widget;
 	}