将宏键池从 273 扩到 350，并同步 Shigure 发键

在原 7×39 槽之后追加减号、导航六键和四个方向键（7×11），不插入 F4/反引号/NUMPADENTER，避免打乱已有热键。KeySender 改为从左解析修饰前缀以支持 CTRL--，导航和方向键按扩展键发送。

Co-authored-by: Wayne-Arasaka <waynebian01@users.noreply.github.com>

Input/WindowsVirtualKeyMap.cs

@@ -41,7 +41,17 @@ internal static class WindowsVirtualKeyMap
         ["NUMPADPLUS"] = 0x6B,
         ["NUMPADMINUS"] = 0x6D,
         ["NUMPADMULTIPLY"] = 0x6A,
-        ["NUMPADDIVIDE"] = 0x6F
+        ["NUMPADDIVIDE"] = 0x6F,
+        ["INSERT"] = 0x2D,
+        ["DELETE"] = 0x2E,
+        ["HOME"] = 0x24,
+        ["END"] = 0x23,
+        ["PAGEUP"] = 0x21,
+        ["PAGEDOWN"] = 0x22,
+        ["LEFT"] = 0x25,
+        ["UP"] = 0x26,
+        ["RIGHT"] = 0x27,
+        ["DOWN"] = 0x28
     };
 
     private static readonly Dictionary<string, int> CharacterKeys = new()