add .gitattributes and fix prettier/js warnings (#3094)

see title, as discussed in
https://github.com/MichMich/MagicMirror/pull/3093

modules/default/weather/providers/openweathermap.js

@@ -90,7 +90,6 @@ WeatherProvider.register("openweathermap", {
 
 	/**
 	 * Overrides method for setting config to check if endpoint is correct for hourly
-	 *
 	 * @param {object} config The configuration object
 	 */
 	setConfig(config) {