Config view: Test connections below the service settings; hide a stale cursor

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/ui/app.go

@@ -175,6 +175,10 @@ func New(cfg *config.Config) *App {
 		AddItem(a.status, 1, 0, false)
 
 	a.app.SetBeforeDrawFunc(func(s tcell.Screen) bool {
+		// A focused text field shows the cursor again while it is drawn. Hiding it
+		// first covers focus moves that bypass tview (arrow keys in forms), which
+		// would leave the cursor behind in the field that was left.
+		s.HideCursor()
 		a.screen = s
 		a.cellAspect = cellAspectOf(s)
 		return false