menu: Sort menu items for all locales

Created by: SunilMohanAdapa

Currently menu items are shown in alphabetical order in applications and no clear order in system configuration. This is done using static weights for menu items based on English names that does not work for other locales.

Sorting can't be done at the time of adding menu items as users of multiple locales may use the interface at the same time.

Implement a sorting mechanism based on existing order as well as labels of menu item. This allows the flexiblity of grouping menu items in future as it may be need for system configuration. In case of help menu

Remove sort order for all modules except for help menu as here we want that specific order.