Remove the need for a map in the default config

common/src/main/kotlin/fr/username404/snowygui/config/Configuration.kt

@@ -52,9 +52,6 @@ object Configuration {
                 """
                     |Snowy {
                     |  displayInitMessage = true
-                    |  enabledFeatures {
-                    |    GammaBoost = false
-                    |  }
                     |}
                 """.trimMargin()
             )
@@ -64,7 +61,9 @@ object Configuration {
             writeConfig(it)
         }
     }
-    val enabledFeatures = obtained.extract<MutableMap<String, Boolean>>("enabledFeatures") // TODO Put enabledFeatures in the obtained config to save the toggled buttons
+    val enabledFeatures: MutableMap<String, Boolean> = if (obtained.hasPath("enabledFeatures")) {
+        obtained.extract("enabledFeatures")
+    } else mutableMapOf()
     init {
         Runtime.getRuntime().addShutdownHook(
             Thread {