Name notebook outputs in json config

[dcdenu4]

Currently the notebook uses the base file name to label the layer in the interactive map. It would be nice to couple the notebook and the plugin script more such that the plugin script describes the label information for the notebook. I think leveraging the current notebook json config file for this purpose will help keep a single source of truth and remove situations where the plugin and notebook can get out of sync.

Maybe something like:

{
    "aoi_center": [
        16.152130441193997,
        -15.959581254692807
    ],
    "aoi_geojson": "aoi_geojson.geojson",
    "layers": {
        "population_suit_sqkm": {
             "name": "Population Suitability (sqkm)",
         },
        "snail_water_temp_suit_dry",
        "parasite_water_temp_suit_dry",
        "ndvi_suit_dry",
        "snail_water_temp_suit_wet",
        "parasite_water_temp_suit_wet",
        "ndvi_suit_wet",
        "habitat_suit_weighted_mean",
        "convolved_hab_risk",
        "normalized_convolved_risk",
        "risk_to_pop_abs",
        "risk_to_pop_count_abs",
        "risk_to_pop_rel",
        "risk_to_pop_count_rel"
    },
    "plot_paths": [
        "ndvi-default.png",
        "population-default.png",
        "snail_water_temp-bt.png",
        "parasite_water_temp-sh.png"
    ]
}```