Allow using Text for splash text (#16)

Author: OffsetMonkey538

src/main/java/com/mosadie/servermainmenu/api/MenuTheme.java

@@ -8,7 +8,11 @@
 public interface MenuTheme {
     String getId();
     Identifier getPanorama();
-    String getSplashText();
+    @Deprecated
+    default String getSplashText() {
+        return null;
+    }
+    Text getSplashAsText();
 
     boolean rollOdds();
 

src/main/java/com/mosadie/servermainmenu/api/NormalTheme.java

@@ -20,8 +20,8 @@ public Identifier getPanorama() {
     }
 
     @Override
-    public String getSplashText() {
-        return "Just a normal menu...";
+    public Text getSplashAsText() {
+        return Text.literal("Just a normal menu...");
     }
 
     @Override

src/main/java/com/mosadie/servermainmenu/client/ServerMainMenuLibClient.java

@@ -78,12 +78,15 @@ public static MenuTheme getTheme() {
 
     private static ServerMainMenuLibConfig config;
 
+    @SuppressWarnings("deprecation")
     public static Text getSplashText() {
         if (config != null && config.splashOptions.overrideSplash) {
             return Text.of(config.splashOptions.overrideSplashText);
         }
 
-        return Text.of(getTheme().getSplashText());
+        // Should still work with old mods that don't implement the asText method I hope...
+        if (getTheme().getSplashText() != null) return Text.of(getTheme().getSplashText());
+        return getTheme().getSplashAsText();
     }
 
     public static Text getButtonText() {