Fixed some incorrect copy

Session/Conversations/Settings/ThreadSettingsViewModel.swift

@@ -522,7 +522,7 @@ class ThreadSettingsViewModel: SessionTableViewModel, NavigatableStateHolder, Ob
                         confirmationInfo: ConfirmationModal.Info(
                             title: "groupLeave".localized(),
                             body: .attributedText(
-                                (currentUserIsClosedGroupAdmin ? "groupDeleteDescription" : "groupLeaveDescription")
+                                (currentUserIsClosedGroupAdmin ? "groupLeaveDescriptionAdmin" : "groupLeaveDescription")
                                     .put(key: "group_name", value: threadViewModel.displayName)
                                     .localizedFormatted(baseFont: .boldSystemFont(ofSize: Values.smallFontSize))
                             ),

Session/Utilities/UIContextualAction+Utilities.swift

@@ -483,11 +483,16 @@ public extension UIContextualAction {
                             
                             let confirmationModalExplanation: NSAttributedString = {
                                 switch (threadViewModel.threadVariant, threadViewModel.currentUserIsClosedGroupAdmin) {
-                                    case (.legacyGroup, true), (.group, true):
-                                        return "groupDeleteDescription"
+                                    case (.group, true):
+                                        return "groupLeaveDescriptionAdmin"
                                             .put(key: "group_name", value: threadViewModel.displayName)
                                             .localizedFormatted(baseFont: .boldSystemFont(ofSize: Values.smallFontSize))
-                                        
+                                    
+                                    case (.legacyGroup, true):
+                                        return "groupLeaveDescription"
+                                            .put(key: "group_name", value: threadViewModel.displayName)
+                                            .localizedFormatted(baseFont: .boldSystemFont(ofSize: Values.smallFontSize))
+                                    
                                     default:
                                         return "groupLeaveDescription"
                                             .put(key: "group_name", value: threadViewModel.displayName)