(bug): No url validation when adding social profiles

Summary

(Summarize the bug encountered concisely)

Steps to reproduce

1. Login and go to notifications screen.
2. Exit the full screen of browser.
3. Observe Subscriptions tab

Platform information

Device: Macbook OS 10.13.14

Browser: Safari

What is the current bug behavior?

'Subscriptions' text gets vertically misaligned on Notifications screen

What is the expected correct behavior?

'Subscriptions' text should not get vertically misaligned on Notifications screen

Relevant logs and/or screenshots

Possible fixes

(If you can, link to the line of code that might be responsible for the problem)