Classify cxxreact/JSBundleType.h as for-frameworks (#58860)

Summary:
Pull Request resolved: #58860

`JSBundleType.h` exposes bundle-format detection internals (`BundleHeader`, `ScriptTag`, `parseTypeFromHeader`, `isHermesBytecodeBundle`). Within React Native it is only used by the bundle loaders, but out-of-tree platforms read `BundleHeader` directly, so it is classified as "for frameworks" rather than private.

Changelog: [Internal]

Reviewed By: cortinico

Differential Revision: D123395575

fbshipit-source-id: a34a486d5a33913c949c82405c4db2d88140afe5

Author: coado

packages/react-native/ReactCommon/cxxreact/JSBundleType.h

@@ -7,7 +7,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/FrameworksGuard.h>
 
 #include <folly/Portability.h>
 #include <cstdint>

packages/react-native/ReactCommon/cxxreact/React/JSBigString.h

@@ -31,7 +31,6 @@
 #define RN_UMBRELLA_CONTEXT 1
 
 #include <cxxreact/JSBigString.h>
-#include <cxxreact/JSBundleType.h>
 
 #undef RN_UMBRELLA_CONTEXT
 #pragma pop_macro("RN_UMBRELLA_CONTEXT")