Changed the layout of the login screen (#47)

* Changed the layout of the login screen

* Add readme (#45)

* Add Google SAML logic

* Add Google SAML ExtendedMetadataDelegate

* Fix logout url

* Add Saml2

* Took me 1.5 hours to add this variable.

* Add sample file IDP

* Update readme

* Compress image

* Fixed head

* Add html, head and body tags

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Co-authored-by: Joep de Jong <[email protected]>