HexEditor: Don't require the ValueInspectorModel's value size to be i32

Author: https://github.com/kleinesfilmroellchen
Commit: da7a8a8711
Pull-request: https://github.com/SerenityOS/serenity/pull/13640
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/gmta
Reviewed-by: https://github.com/linusg

Userland/Applications/HexEditor/HexEditorWidget.cpp

@@ -54,7 +54,7 @@ HexEditorWidget::HexEditorWidget()
         if (!index.is_valid())
             return;
         m_selecting_from_inspector = true;
-        m_editor->set_selection(m_editor->selection_start_offset(), index.data(GUI::ModelRole::Custom).as_i32());
+        m_editor->set_selection(m_editor->selection_start_offset(), index.data(GUI::ModelRole::Custom).to_integer<size_t>());
         m_editor->update();
     };