Log in screen adjustments

[callumu]

Steps to reproduce

There are some adjustments needed for the log in screen:

1. Padding increased from 'Welcome back!' to the back button
2. When matrix.org is the server, we need to add 'The world's largest free server' below it as in the designs: https://www.figma.com/file/0MMNu7cTOzLOlWb7ctTkv3/Element-X-(new)?node-id=6%3A7516&t=tl952FbJDyf4QCOx-1 - not planned as it was removed from the current apps for consistent spacing and to not favour any particular homeserver.

For the server page:

1. Padding needs to be checked for the distance from the server icon to the back arrow
2. Copy changes to just 'what is the address of your server' - I've updated the designs to match: https://www.figma.com/file/0MMNu7cTOzLOlWb7ctTkv3/Element-X-(new)?node-id=6%3A8489&t=tl952FbJDyf4QCOx-1

Outcome

See above for design links

Your phone model

No response

Operating system version

No response

Application version

No response

Homeserver

No response

Will you send logs?

Yes