Fix #1108 Hide email input on signup page so that it doesn't hide par… (#1140)
Fix #1108 Hide email input on signup page so that it doesn't hide par… (#1140)

* Fix #1108 Hide email input on signup page so that it doesn't hide part of the bottom of the page

* Fix #1115 Prevent clicking on the button more than once in a row.

* Show the email input on desktop

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