I read from cybrosys that we can either use the cdnjs link as an src attribute in the script tag or pull chart.js from git and add it to manifest. I registered cdnjs link to templates and it appears inside head tag, however it doesn't update my charts. Maybe that is because of another link below which calls built-in old chartjs. What about the second option, I don't know how to add chart.js to manifest. (as external dependency? if yes, how?)