D-Net

searchDownload.component: CSV Download changed for search pages - link (<a> tag) added in document when service request succeeds.

1. mailPrefs.component: Bug fix: redirect to /user-info when 'save' is clicked, but preferences not changed.
2. login/user.component.html: Bug fix: When session is expired, in 'sign in' button call 'logIn()' function instead of redirect to 'loginUrl'.

Add a readme file
remove unused file
update services that have POST & DELETE methods in admin tool API with options using authorization headers

Move customOptions.class.ts in services/servicesUtils/ update filepaths in services using it

Add NOADs link in bottom menu

SearchPageTableViewComponent: Add a try catch in ngOnDestroy, ngAfterViewInit to avoid crash in server mode

mailPrefs.component.ts: add section and margin in this outer component which calls mailPrefs of Library.

1. library.css: Add class 'inherit-color' (used in user notifications: uk-form-label).
2. mailPrefs.component: make functionality of buttons like manage-user-notifications.component of admin portal (when preferences change, save button remains clickable unless 'reset' is clicked)....

Rename 'ErrorCodes' class to 'LoginErrorCodes' of login/utils/guardHelper.class.ts

statistics.component.html: Add 'uk-margin-top' in dropdown menu (small screens).