InputText, Demo: amend comments to direct more users to the std::string version.

https://www.youtube.com/watch?v=pLwvNdpTpjs wasted a solid hour before finding this.
Crazy that people are using AI instead of actually _reading_ comments, demo and headers. (The information appeared multiple times on their screen)

imgui_widgets.cpp

@@ -3920,6 +3920,7 @@ namespace ImStb
 #include "imstb_textedit.h"
 }
 
+// If you want to use InputText() with std::string or any custom dynamic string type, use the wrapper in misc/cpp/imgui_stdlib.h/.cpp!
 bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
 {
     IM_ASSERT(!(flags & ImGuiInputTextFlags_Multiline)); // call InputTextMultiline()
@@ -4620,9 +4621,7 @@ static ImVec2 InputTextLineIndexGetPosOffset(ImGuiContext& g, ImGuiInputTextStat
 //   This is so we can easily call InputText() on static arrays using ARRAYSIZE() and to match
 //   Note that in std::string world, capacity() would omit 1 byte used by the zero-terminator.
 // - When active, hold on a privately held copy of the text (and apply back to 'buf'). So changing 'buf' while the InputText is active has no effect.
-// - If you want to use ImGui::InputText() with std::string, see misc/cpp/imgui_stdlib.h
-// (FIXME: Rather confusing and messy function, among the worse part of our codebase, expecting to rewrite a V2 at some point.. Partly because we are
-//  doing UTF8 > U16 > UTF8 conversions on the go to easily interface with stb_textedit. Ideally should stay in UTF-8 all the time. See https://github.com/nothings/stb/issues/188)
+// - If you want to use InputText() with std::string or any custom dynamic string type, use the wrapper in misc/cpp/imgui_stdlib.h/.cpp!
 bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* callback_user_data)
 {
     ImGuiWindow* window = GetCurrentWindow();