* Fixes an issue where long translations cause layout issues
* Fixes an issue where the alignment shifts when switching between signup/login
* Makes some of the margin/padding more consistent
* Removes duplicate .login-modal and .create-account classes and replaces them with .login-modal-body and .create-account-body
* Adds another color transformation so we could remove prefers-color-scheme... the problem with that was that my OS' UI might be set to something different than my Discourse preferences (prefers-color-scheme only responds to OS UI settings)