Add pull-right class to move/align div to the right

[kinow]

Description

Sorry, I changed in the browser the HTML and CSS, but when committing I forgot to include the pull-right in the pull request, sorry!

Motivation and Context

Now the buttons will be right-aligned (pull-right was accidentally used as ID, and graph-menu as a class; so it was just a confusion and they needed to be swapped)

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.