Only load Chart.js when necessary.
Only load Chart.js where it's used, namely the Graphs section. Follow up on !4394 (merged).
cc: @jschatz1
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Only load Chart.js where it's used, namely the Graphs section. Follow up on !4394 (merged).
cc: @jschatz1