feat(webapp): [WIP] map to show locations of users and groups

Created by: Tirokk

🍰 Pullrequest

Map to show locations of users and groups.

Issues

• fixes #5807 (closed)
• relates #4546

Todo

• do we need the package @mapbox/mapbox-gl-language
• MAPBOX_TOKEN is new in webapp config
  • implement it in docker compose and deployment all over the place
• we need Node v16.16.0 or higher in webapp for the package v-mapbox@legacy
  • do we like to use an even higher Node version?
• mention the Node version in webapp README?