Find and replace http://freecad.org to https://freecad.org

Find and replace:
http:\/\/(.{0,10})freecad
https://$1freecad
Done in all remaining files (after doing it in SVGs in the last commit)

src/Mod/Web/Gui/Command.cpp

@@ -56,7 +56,7 @@ void CmdWebOpenWebsite::activated(int iMsg)
 {
     Q_UNUSED(iMsg);
     doCommand(Doc, "import WebGui");
-    doCommand(Command::Gui, "WebGui.openBrowser('http://www.freecad.org/')");
+    doCommand(Command::Gui, "WebGui.openBrowser('https://www.freecad.org/')");
 }
 
 //===========================================================================