[QuickAccent]Add combining characters (#23044)

* Add combining characters

* Fix spelling

* Change activation to VK_PERIOD

src/modules/poweraccent/PowerAccentKeyboardService/KeyboardListener.h

@@ -99,6 +99,7 @@ namespace winrt::PowerToys::PowerAccentKeyboardService::implementation
                                                                LetterKey::VK_Y,
                                                                LetterKey::VK_Z,
                                                                LetterKey::VK_COMMA,
+                                                               LetterKey::VK_PERIOD,
                                                                LetterKey::VK_MINUS };
         LetterKey letterPressed{};
 

src/modules/poweraccent/PowerAccentKeyboardService/KeyboardListener.idl

@@ -42,6 +42,7 @@ namespace PowerToys
             VK_Y = 0x59,
             VK_Z = 0x5A,
             VK_COMMA = 0xBC,
+            VK_PERIOD = 0xBE,
             VK_MINUS = 0xBD
         };