general: Fix clang/gcc build errors

src/core/crypto/key_manager.h

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <array>
+#include <filesystem>
 #include <map>
 #include <optional>
 #include <string>
@@ -15,10 +16,6 @@
 #include "common/common_types.h"
 #include "core/crypto/partition_data_manager.h"
 
-namespace std::filesystem {
-class path;
-}
-
 namespace Common::FS {
 class IOFile;
 }

src/core/file_sys/patch_manager.cpp

@@ -10,6 +10,10 @@
 #include "common/hex_util.h"
 #include "common/logging/log.h"
 #include "common/settings.h"
+#ifndef _WIN32
+#include "common/string_util.h"
+#endif
+
 #include "core/core.h"
 #include "core/file_sys/common_funcs.h"
 #include "core/file_sys/content_archive.h"