ROADMAP

    -differences between the three modes:
        Open mode:
            -the temp, humidity, light, water parameters are setted by the meteo api, the rest is setted by the user
            -all the parameters are controlled by the user
        SemiControlled mode:
            -the user choose how to set the parameters
            -all parameters free
        
        Controlled mode:
            -all the values are set by the user
            -the user choose which parameters are free and which are controlled by the meteo api

    -make the calendar widget working

    -final updates of README.md, hackathon page, forgejo, github page, small design adjustments.