more intuitive features on frontend

[dunland]

• [ ] display building stats on frontend? → at least make building info more intuitive (after selecting a building, provide a better insight on the house data for the user)
• [x] color token → coherent coloring of user group
  • [x] on infoscreen: in combined emissions / energy cost graphs
  • [x] on infoscreen: individual data view
  • [x] stroke selected building
• [x] merge buildings_interaction with data_view_individual:
  • [x] frontend
  • [x] infoscreen

[dunland]

• [ ] display house information on frontend canvas, without overlap of other buildings! → users shall not be forced to look up to the infoscreen all the time