Fixed build errors

Author: Harini Malothu

vnext/Shared/Shared.vcxitems

@@ -555,6 +555,7 @@
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\reactperflogger\reactperflogger\ReactPerfettoLogger.cpp" />
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\oscompat\OSCompatPosix.cpp" />
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\oscompat\OSCompatWindows.cpp" />
+    <ClCompile Include="$(ReactNativeDir)\ReactCommon\jsinspector-modern\network\NetworkReporter.cpp" />
   </ItemGroup>
   <ItemGroup>
     <None Include="$(MSBuildThisFileDirectory)tracing\rnw.wprp" />

vnext/Shared/Shared.vcxitems.filters

@@ -343,6 +343,7 @@
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\oscompat\OSCompatPosix.cpp" />
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\oscompat\OSCompatWindows.cpp" />
     <ClCompile Include="$(MSBuildThisFileDirectory)..\Microsoft.ReactNative\Fabric\platform\react\renderer\textlayoutmanager\WindowsTextLayoutManager.cpp" />
+    <ClCompile Include="$(ReactNativeDir)\ReactCommon\jsinspector-modern\network\NetworkReporter.cpp" />
   </ItemGroup>
   <ItemGroup>
     <Filter Include="Source Files">

vnext/stubs/double-conversion/double-conversion.h

@@ -25,10 +25,12 @@ class StringBuilder {
     return m_ss.str().length();
   }
 
-  void Finalize() {
+  char* Finalize() {
     std::string str = m_ss.str();
     memcpy(m_buffer, str.c_str(), str.length());
-  }
+    m_buffer[str.length()] = '\0';  // IMPORTANT: Add null terminator
+    return m_buffer;  // Returns char* that will convert to std::string
+}
 
   char *m_buffer;
   std::stringstream m_ss;