fix(ui): set border color to theme.border.color initially

internal/ui/util.go

@@ -11,6 +11,7 @@ func NewConfiguredBox(box *tview.Box, cfg *config.Theme) *tview.Box {
 	p := b.Padding
 	box.
 		SetBorder(cfg.Border.Enabled).
+		SetBorderColor(tcell.GetColor(b.Color)).
 		SetBorderPadding(p[0], p[1], p[2], p[3]).
 		SetTitleAlign(tview.AlignLeft).
 		SetFocusFunc(func() {