Beta - revision 2

beta version of the dashboard - revision 2

This second beta version essentially includes cosmetic changes on the Grafana dashboard:

• Use Grafana light theme by default
• Reorder and rename the sections in the dashboard
• The sections in the dashboard are now collapsible
• Hide the variables at the top of the pag

What's Changed

• Update User dashboard, including the reordering of the sections by @ens-lgil in #77
• Fix JSON dashboard and its import module by @ens-lgil in #78
• Add code to set the default theme when setting up Grafana by @ens-lgil in #79
• Minor cosmetic harmonizations on the dashboard by @ens-lgil in #80
• Merge branch "gamma-frontend" by @ens-lgil in #81
• Add missing grafana_ga.organization import by @ens-lgil in #82
• Prepare code for new demo branch by @ens-lgil in #83

Full Changelog: v1.0-beta...v1.0-beta-2