Feature: Add icons to experimental features submenu

Add 16x16 menu icons for the three experimental-features items in the
online-host right-click menu: file management (folder), privacy screen
(shield with padlock), and drawing board (paintbrush). The new bitmaps
follow the existing #F0F0F0-background 32bpp convention and are wired
into the m_bmOnline array via LoadBitmap and SetMenuItemBitmaps, using
the same pattern as the other nested-submenu items.

Co-Authored-By: deepseek-v4-pro

server/2015Remote/2015RemoteDlg.h

@@ -432,7 +432,7 @@ public:
     bool IsDllRequestLimited(const std::string& ip);
     void RecordDllRequest(const std::string& ip);
     CMenu	   m_MainMenu;
-    CBitmap m_bmOnline[66];
+    CBitmap m_bmOnline[69];
     uint64_t m_superID;
     std::map<HWND, CDialogBase *> m_RemoteWnds;
     FileTransformCmd m_CmdList;