[web] Add friend and block lists sections

Summary:
Add labels and links. These links do not work currently and will be implemented later
https://www.figma.com/file/a1nkbWgbgjRlrOY9LVurTz/Comm-%2F-Desktop-app?node-id=1272%3A88750

Depends on D3323

Test Plan: Open the page and check if it is rendered correctly

Reviewers: benschac, atul, def-au1t

Reviewed By: atul

Subscribers: ashoat, Adrian, karol-bisztyga

Differential Revision: https://phabricator.ashoat.com/D3324