=== Problem to solve
By providing a header and footer 'chrome' for the Interaction Timeline, we can better situate users within the tool. Improving the fit and finish of the page container will allow us to provide some necessary information that is current missing, and will give the entire tool a more trustworthy presentation.
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===Acceptance criteria
* The Timeline's header should be styled per the wireframe
** Background color #F6F6F6
** Bottom border same as text color
** Add ~10px padding above tool title
** Tool name and link to "This feature is in early testing. Learn more & leave feedback!" should stay on the top row
** Second row should have subtitle "Chronologic history for two users on pages where they have both made edits."
* The footer should be styled per the wireframe
** Background color #F6F6F6
** Appropriate, breathable padding
** Left-aligned
*** Top line: Made by the Wikimedia Foundation's [[https://meta.wikimedia.org/wiki/Community_health_initiative/The_Team|Anti-Harassment Tools team]].
*** Second line: Licensed under [[https://www.gnu.org/licenses/old-licenses/gpl-2.0.html|GPL]] - View on [[https://github.com/wikimedia/InteractionTimeline|GitHub]] (version N.NN.NN) - [[https://wikimediafoundation.org/wiki/Privacy_policy|Privacy policy]] - [[https://phabricator.wikimedia.org/maniphest/task/edit/form/1/?projects=Anti-Harassment&title=Interaction%20Timeline%20bug%20report:%20&assign=TBolliger&description=Please%20be%20descriptive%20and%20include%20screenshots%20and%20links%20if%20possible.%20Thank%20you!%20|Report a bug]]
*** the latest commit number and/or version should be displayed by the link to GitHub
** Right-aligned: Logo for ToolLabs, linked to https://tools.wmflabs.org/
* Neither are fixed
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=== Wireframe
{F11209716}