News feed on the very top

[VerevkinAlexander]

I have created a new component which includes dates filtration and news.json file and placed this component to the top of page

[sschiessl-bcp]

Please

• [x] add the possibility that the user closes the notification (persisted in localStorage), and if closed it won't open again (clickable "x" on the right side)
• [x] Please center the icon and text of the notification
• [x] If there are several notifications, only show one and have them switch after 15sec. Have the new notification slide in from the top

[VerevkinAlexander]

Ive added the new notification slide in from the top wich switched every 15 seconds and displayed only one notification. Also, I performed refactoring to improve component rendering. Ive added new methods to the SettingsStore to get and persist hidenNews list in localStorage.Also, Ive added the onClose method which added news to the hiddenNews list. Also, I added an additional close icon component to the Alert because of Alerts onClose method with an included close icon closed several news notifications when we close one

[sschiessl-bcp]

Accepted