Added the ability to enable borders for the bar. (#428)

* Added the ability to configure a border for the bar.

* Added the right color for configs

widget/settings/pages/theme/bar/index.ts

@@ -33,6 +33,11 @@ export const BarTheme = (): Scrollable<Child, Attribute> => {
                     min: 0,
                     max: 100,
                 }),
+                Option({
+                    opt: options.theme.bar.border.color,
+                    title: 'Bar Border Color',
+                    type: 'color',
+                }),
                 Option({
                     opt: options.theme.bar.buttons.opacity,
                     title: 'Button Opacity',