Remove other places where <body> tag is used to override the default black-on-white theme.
WX_HTML_REPORT_BOX WX_HTML_REPORT_PANEL HTML_MESSAGEBOX DIALOG_DISPLAY_HTML_TEXT Fixes https://gitlab.com/kicad/code/kicad/issues/9157 Fixes https://gitlab.com/kicad/code/kicad/issues/9156