refactor: change default color in default config to gray instead of white (like the main instance)

build-number.txt

@@ -1 +1 @@
-1864
+1865

src/main/java/me/chayapak1/chomens_bot/Configuration.java

@@ -88,7 +88,7 @@ public class Configuration {
     public static class ColorPalette {
         public String primary = "yellow";
         public String secondary = "gold";
-        public String defaultColor = "white";
+        public String defaultColor = "gray";
         public String username = "gold";
         public String uuid = "aqua";
         public String string = "aqua";

src/main/resources/default-config.yml

@@ -59,7 +59,7 @@ music:
 colorPalette:
   primary: 'yellow'
   secondary: 'gold'
-  defaultColor: 'white' # ig java has the `default` keyword so i need to use defaultColor
+  defaultColor: 'gray' # ig java has the `default` keyword so i need to use defaultColor
   username: 'gold'
   uuid: 'aqua'
   string: 'aqua'