[UI] Create CFP page

Create page for session submissions similar to the one in the old site: https://jug.bg/%D0%BF%D1%80%D0%B5%D0%B4%D0%BB%D0%BE%D0%B6%D0%B8-%D1%82%D0%B5%D0%BC%D0%B0/

[gochev]

Sending of email only ahs to be added,

basically an email has to be send using gmail smtp .. (should be configured in the quarkus properties file) and the email should be send to go6@jug.bg with the content of everything from the CFP.