Clear login data

[akutch]

Description

Based on @tijno's changes https://github.com/bitclout/identity/pull/39 per issue https://github.com/bitclout/identity/issues/34

Adds "Clear login data" option to login for users to be able to wipe their accounts from localstorage. The bulk of the diff here is from Prettier formatting the styles.scss file 😅

Screenshots

Before	After
n/a
See it live (back button + confirmation flow)

[tijno]

@akutch amazing! thank you so much.

[akutch]

Any updates here?

[lazynina]

@maebeam can you take a review of this? Wanted a second set of eyes and forgot to tag you earlier. sorry @akutch

[maebeam]

If you could just fix that one merge conflict I'd love to get this added