[Analyzers][CPP]Turn on C26495 and fix code (#21163)

C26495: A member variable isn't initialized by a constructor or by an initializer.
Fixing occurrences with default member initialization.

src/modules/fancyzones/FancyZonesLib/JsonHelpers.h

@@ -13,9 +13,9 @@ namespace BackwardsCompatibility
     struct DeviceIdData
     {
         std::wstring deviceName = L"FallbackDevice";
-        int width;
-        int height;
-        GUID virtualDesktopId;
+        int width{};
+        int height{};
+        GUID virtualDesktopId{};
         std::wstring monitorId;
 
         static std::optional<DeviceIdData> ParseDeviceId(const std::wstring& str);
@@ -77,7 +77,7 @@ namespace JSONHelpers
     struct LayoutQuickKeyJSON
     {
         std::wstring layoutUuid;
-        int key;
+        int key{};
 
         static std::optional<LayoutQuickKeyJSON> FromJson(const json::JsonObject& device);
     };