Support chat tab self-closing

Author: intitni

Core/Sources/SuggestionWidget/FeatureReducers/ChatPanelFeature.swift

@@ -218,6 +218,11 @@ public struct ChatPanelFeature: ReducerProtocol {
                 state.chatTabGroup.tabInfo.insert(tab, at: to)
                 return .none
 
+            case let .chatTab(id, .close):
+                return .run { send in
+                    await send(.closeTabButtonClicked(id: id))
+                }
+                
             case .chatTab:
                 return .none
             }

Tool/Sources/ChatTab/ChatTabItem.swift

@@ -20,6 +20,7 @@ public struct ChatTabItem: ReducerProtocol {
         case updateTitle(String)
         case openNewTab(AnyChatTabBuilder)
         case tabContentUpdated
+        case close
     }
 
     public init() {}
@@ -34,6 +35,8 @@ public struct ChatTabItem: ReducerProtocol {
                 return .none
             case .tabContentUpdated:
                 return .none
+            case .close:
+                return .none
             }
         }
     }