[WIP] Add Insights charts

[svenvg93]

📃 Description

This PR is still a work in progess and a playground for more insights charts.
This will not proceed before all the current open PR are merged as it leans on them.

This PR as well is to share ideas :) The end goal is to show more insights on the tests with diffrent graphs.

🪵 Changelog

➕ Added

• Add a Insights page for more advanced
  • Add a Pie chart for the Test status (Completed, Failed, Started)
  • Add a Pie chart for the Threshold (Passed, Failed, NotChecked)
  • Add a line chart to the average per month for download and upload
• Add a Combined Download and upload chart to the Dashboard
• Add a Average Latency and packet loss chart for the Latency tests to the Dashboard

✏️ Changed

• Move some Charts from the Dashboard to the Speedtest overview page
• Reorder the side menu

Todo

• Add the date time picker and adjust the charts to use it, after: [Feature] Added averages and date ranges to the panel dashboard #1669
• Add charts to show download and upload per ISP or Server

📷 Screenshots

Insights page

Dashboard: