Method releaseChat

src/main/windows/window-manager.ts:170–174

* Release a chat owned by a specific window.

(chatId: string, electronId: number)

   * Release a chat owned by a specific window.
   */
  releaseChat(chatId: string, electronId: number): void {
    if (this.chatOwnership.get(chatId) === electronId) {
      this.chatOwnership.delete(chatId)
    }
  }

  /**
   * Release all chats owned by a window (called on window close).