added code so only the hairdresser can only change their own profile
partialing and cleaning up hairdresser show page, error still exists for best_in_place when hairdresser not signed in
added patials for navbar, about us thumbnails, and refactored category partial, deleted user_session file as it is redundant
added partials for available hairdressers to render on two pages, refactored some files for indentation