[Keyboard Manager] Add JSON support for App Specific shortcuts (#4840)

* Enable app specific shortcut remapping

* Fixed lowercase function call

* Add test file

* Moved GetForegroundProcess to II and added tests

* Fixed runtime error while testing due to heap allocation across dll boundary

* Renamed function

* Changed shortcutBuffer type

* Linked App specific UI to backend

* Added shortcut validation logic on TextBox LostFocus handler

* Moved Validate function and changed default text

* Changed to case insensitive warning check

* Changed to case insensitive warning check at OnClickAccept

* Fixed alignment and spacing issues

* Added app-specific JSON support in backend

* Updated landing page

* Make listview horizontally scrollable

* Added tests

* Consider all case variants of All Apps in textbox to be global shortcuts

src/modules/keyboardmanager/common/KeyboardManagerConstants.h

@@ -22,12 +22,18 @@ namespace KeyboardManagerConstants
     // Name of the property use to store global shortcut remaps array.
     inline const std::wstring GlobalRemapShortcutsSettingName = L"global";
 
+    // Name of the property use to store app specific shortcut remaps array.
+    inline const std::wstring AppSpecificRemapShortcutsSettingName = L"appSpecific";
+
     // Name of the property use to store original keys.
     inline const std::wstring OriginalKeysSettingName = L"originalKeys";
 
     // Name of the property use to store new remap keys.
     inline const std::wstring NewRemapKeysSettingName = L"newRemapKeys";
 
+    // Name of the property use to store the target application.
+    inline const std::wstring TargetAppSettingName = L"targetApp";
+
     // Name of the default configuration.
     inline const std::wstring DefaultConfiguration = L"default";