Adding 'bets#show' content

This PR adds content for the 'bets#show' view page.

This PR does NOT address styling of the page. That will be separate.

cc @Clee681 @irmiller22 LMK what you think please
Yea agree with @irmiller22 on this one - would prefer to leave it in the helper so I know each time I call it, it returns a view-ready dollar amount. But I'm interested in your thoughts @Clee681 ...