build: Fix more missing includes

main/gui/source/window/platform/macos.cpp

@@ -10,6 +10,7 @@
     #include <hex/api/events/events_interaction.hpp>
     #include <hex/api/task_manager.hpp>
 
+    #include <hex/helpers/utils.hpp>
     #include <hex/helpers/utils_macos.hpp>
     #include <hex/helpers/logger.hpp>
     #include <hex/helpers/default_paths.hpp>

main/gui/source/window/platform/web.cpp

@@ -5,6 +5,7 @@
 #include <emscripten.h>
 #include <emscripten/html5.h>
 
+#include <hex/api/imhex_api/system.hpp>
 #include <hex/api/events/events_gui.hpp>
 #include <hex/api/events/events_interaction.hpp>
 #include <hex/api/events/requests_gui.hpp>

plugins/diffing/source/content/diffing_algorithms.cpp

@@ -10,6 +10,8 @@
 #include <imgui.h>
 #include <hex/api/task_manager.hpp>
 
+#include <span>
+
 namespace hex::plugin::diffing {
 
     using namespace ContentRegistry::Diffing;