Update style changes based on Axel's feedback

- journal and news source titles are removed
- commentary expert photo is smaller
- item titles are smaller
- padding has been reduced on the top and bottom of items on this page
updated registraton form, based on conference feedback

- removed name and location form field labels
- reduced the height by reducing stacked elements and removing
unnecessary text
- removed button style from Cancel link
- changed submit button style to .success