Fixed issue with normalisationPregain

Author: devgianlu

core/src/main/java/xyz/gianlu/librespot/FileConfiguration.java

@@ -22,6 +22,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Properties;
 import java.util.function.Supplier;
 
@@ -96,7 +97,9 @@ private static void migrateOldConfig(@NotNull File confFile, @NotNull FileConfig
 
         for (Object key : old.keySet()) {
             String val = old.getProperty((String) key);
-            if ("true".equals(val) || "false".equals(val)) {
+            if (Objects.equals(key, "player.normalisationPregain")) {
+                config.set((String) key, Float.parseFloat(val));
+            } else if ("true".equals(val) || "false".equals(val)) {
                 config.set((String) key, Boolean.parseBoolean(val));
             } else {
                 try {

core/src/main/resources/default.toml

@@ -23,7 +23,7 @@ enabled = true # Preload enabled
 [player] ### Player ###
 autoplayEnabled = true # Autoplay similar songs when your music ends
 preferredAudioQuality = "VORBIS_160" # Preferred audio quality (VORBIS_96, VORBIS_160, VORBIS_320)
-normalisationPregain = 0 # Normalisation pregain
+normalisationPregain = 0.0 # Normalisation pregain
 initialVolume = 65536 # Initial volume (0-65536)
 logAvailableMixers = true # Log available mixers
 mixerSearchKeywords = "" # Mixer/backend search keywords