Fix build errors: remove duplicate include and add missing QuirkSettings files to project

Co-authored-by: anupriya13 <54227869+anupriya13@users.noreply.github.com>

Author: Copilot

vnext/Microsoft.ReactNative/Microsoft.ReactNative.vcxproj

@@ -472,6 +472,10 @@
     <ClCompile Include="Utils\ValueUtils.cpp" />
     <ClCompile Include="Utils\XamlIslandUtils.cpp" />
     <ClCompile Include="ReactSupport.cpp" />
+    <ClCompile Include="QuirkSettings.cpp">
+      <DependentUpon>QuirkSettings.idl</DependentUpon>
+      <SubType>Code</SubType>
+    </ClCompile>
     <ClCompile Include="TestHook.cpp" />
     <ClCompile Include="XamlUIService.cpp">
       <DependentUpon>XamlUIService.idl</DependentUpon>
@@ -564,6 +568,9 @@
   <ItemGroup>
     <Midl Include="DesktopWindowMessage.idl" />
     <Midl Include="DocString.idl" />
+    <Midl Include="QuirkSettings.idl">
+      <SubType>Designer</SubType>
+    </Midl>
     <Midl Include="XamlUIService.idl">
       <SubType>Designer</SubType>
     </Midl>

vnext/Microsoft.ReactNative/QuirkSettings.cpp

@@ -5,7 +5,6 @@
 #include "QuirkSettings.h"
 #include "QuirkSettings.g.cpp"
 
-#include "QuirkSettings.h"
 #include "React.h"
 #include "ReactPropertyBag.h"