Workaround baseline alignment issue in wxHtmlWindow

In particular, don't allow a cell boundary between Japanese/Chinese
chars and Roman chars.

Fixes https://gitlab.com/kicad/code/kicad/issues/9718

common/dialogs/wx_html_report_panel.cpp

@@ -225,6 +225,10 @@ wxString WX_HTML_REPORT_PANEL::generateHtml( const REPORT_LINE& aLine )
         }
     }
 
+    // wxHtmlWindow fails to do correct baseline alignment between Japanese/Chinese cells and
+    // Roman cells.  This keeps the line in a single cell.
+    retv.Replace( " ", " " );
+
     return retv;
 }