Reorganizes header in application.html.erb and changes applicable styles
Fixes bug where user is not found in SessionsController
Removes colons in form and removes User errors messages (which would never apply to this form)
Removes extra closing 'ul' tag
Reformats elements in header
Makes 'header a' display inline-block to be consistent with other pages
Formats flash messages
Styles errors related to forms
Only sets @recommendation when a user has saved their financial details
Favors escaped HTML entities
Adds currency_input div to style inputs on Financial Detail page
Corrects spacing in FinancialDetail/new view
Removes main from application.html.erb to allow for namespacing CSS
Adds content inside of unique main elements
Updates stylesheets, and separates out namespaced styles
Removes uniqueness validation on user_id for FinancialDetail