Copilot: Disable by default also in the settings

... and make the enabling more prominent.

Change-Id: I77e236a1aec2d3ced3280aa8af322a02b8a14dd1
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/copilot/copilotoptionspage.cpp

@@ -67,8 +67,8 @@ public:
         Column {
             QString("<b>" + Tr::tr("Note:") + "</b>"), br,
             warningLabel, br,
-            authWidget, br,
             CopilotSettings::instance().enableCopilot, br,
+            authWidget, br,
             CopilotSettings::instance().nodeJsPath, br,
             CopilotSettings::instance().distPath, br,
             CopilotSettings::instance().autoComplete, br,