Use a full-width x-axis when rendering bar and line charts in the plotter widget
Use a full-width x-axis when rendering bar and line charts in the plotter widget

Summary:
Implements the full-width x-axis from the mockups by hiding the "0" y-axis label and extending the x-axis to touch the edges of the graph container.

{F550579}

{F550610}

https://app.asana.com/0/132409062806753/166319175082276

Test Plan: - Verified in Perseus demo that with the xomManatee flag enabled, the "0" label is hidden and the horizontal axis extends to the edges of the container

Reviewers: kevinb

Reviewed By: kevinb

Subscribers: jared

Differential Revision: https://phabricator.khanacademy.org/D29865

learningequality/perseus,learningequality/perseus,ariabuckles/perseus,ariabuckles/perseus,ariabuckles/perseus,ariabuckles/perseus