fix(ProfileContextMenu): stop leaking memory

- got removed in a recent refactoring, restore it
- when a context menu component is opened via `Global.openMenu()`, it
has to be destroyed manually

ui/app/AppLayouts/Chat/panels/UserListPanel.qml

@@ -205,6 +205,7 @@ Item {
             onRemoveFromGroup: {
                 root.store.removeMemberFromGroupChat(profileContextMenu.publicKey)
             }
+            onClosed: destroy()
         }
     }
 }

ui/app/AppLayouts/Communities/panels/MembersTabPanel.qml

@@ -371,6 +371,7 @@ Item {
                 const contactDetails = memberContextMenuView.publicKey === "" ? {} : Utils.getContactDetailsAsJson(memberContextMenuView.publicKey, true, true)
                 Global.blockContactRequested(memberContextMenuView.publicKey, contactDetails)
             }
+            onClosed: destroy()
         }
     }
 

ui/app/AppLayouts/Profile/views/ContactsView.qml

@@ -89,6 +89,7 @@ SettingsContentBase {
                     const contactDetails = contactContextMenu.publicKey === "" ? {} : Utils.getContactDetailsAsJson(contactContextMenu.publicKey, true, true)
                     Global.blockContactRequested(contactContextMenu.publicKey, contactDetails)
                 }
+                onClosed: destroy()
             }
         }
         SearchBox {

ui/imports/shared/views/chat/MessageView.qml

@@ -1227,6 +1227,10 @@ Loader {
                 root.store.removeMemberFromGroupChat(profileContextMenu.publicKey)
             }
             onOpened: root.setMessageActive(root.messageId, true)
+            onClosed: {
+                root.setMessageActive(root.messageId, false)
+                destroy()
+            }
         }
     }
     Component {