Change button from "Submit Session" to "My Sessions"

[brettski]

Issue

On the "Session Preview" page (/wi/session/submit/preview) which is reached after submitting a session. The button on the bottom reads, Submit Session though the button actually brings you to "My Session List" (http://localhost:3000/member/my-sessions). The button on the preview page should read more accurate to where it sends you. E.g. "My Sessions"

[mcookWI]

@brettski The session isn't actually changed to "Submitted" status until the user clicks on this button. Maybe we could change the text on the button to say "Submit Session & Return to My Sessions"?