Limiting the width & Removing the side leftovers from the menu

[andre-ab]

Limit the maximum size of the menu. with a new attribute maxWidth if the screen is less than the maxWidth value, the menu takes the screen's Width value

Removing the side leftovers from the menu. Removing the side leftovers from the menu, because after limiting it, it creates leftovers on the sides

[rafalbednarczuk]

Already fixed in https://github.com/rafalbednarczuk/curved_navigation_bar/commit/7a47877c02adf1b85c8d70db94fdb04df3d6bf20 https://github.com/rafalbednarczuk/curved_navigation_bar/commit/3be44d98b642b59054ca296b56f051cf7856460a