Revert "Use proper panel and panel-grid classes for Packages"
Revert "Use proper panel and panel-grid classes for Packages"

This reverts commit 14cbba1f60e94e32f55d4cefaeb22005e6f32c21.

dcos/dcos-ui,dcos/dcos-ui,dcos/dcos-ui,dcos/dcos-ui,dcos/dcos-ui