Improve Graph export file names

Issue

#86 (closed)

Modifications

Modified graph exporting filenames to improve readability.

Note

• The ApexCharts package has been updated to a new version to support exporting filenames definition.
• LineChartConsumption chart contains errors associated with the campus and group filters, which presents the wrong filters for the graph shown on the screen on page loading. That being the case, the exporting filename contains the filter information, which might present wrongful information until that issue is fixed.