Update ChartJS from 2.x to 3.5
Update ChartJS from 2.x to 3.x.
Annotation plugin updated from 0.5.7 to 1.0.2, required for ChartJS 3.x.
Changes:
- y-axes now contains all ticks when autozoom is set to true, before only 0,5 mm tick would be displayed when there is no or light rain.
- annotations and labels are now rendered on top of the data set instead of behind the data set
- color of the vertical line made darker, so it becomes better visible on lighter backgrounds.