Allow fallback components to translate properly

Fixes #3660

core/src/main/java/org/geysermc/geyser/text/MinecraftLocale.java

@@ -31,6 +31,7 @@ import org.geysermc.geyser.util.AssetUtils;
 import org.geysermc.geyser.util.FileUtils;
 import org.geysermc.geyser.util.WebUtils;
 
+import javax.annotation.Nullable;
 import java.io.*;
 import java.nio.file.Files;
 import java.util.HashMap;
@@ -208,6 +209,23 @@ public class MinecraftLocale {
         return localeStrings.getOrDefault(messageText, messageText);
     }
 
+    /**
+     * Translate the given language string into the given locale, or returns null.
+     *
+     * @param messageText Language string to translate
+     * @param locale Locale to translate to
+     * @return Translated string or null if it was not found in the given locale
+     */
+    @Nullable
+    public static String getLocaleStringIfPresent(String messageText, String locale) {
+        Map<String, String> localeStrings = LOCALE_MAPPINGS.get(locale.toLowerCase(Locale.ROOT));
+        if (localeStrings != null) {
+            return localeStrings.get(messageText);
+        }
+
+        return null;
+    }
+
     /**
      * Convert a byte array into a hex string
      *

core/src/main/java/org/geysermc/geyser/text/MinecraftTranslationRegistry.java

@@ -45,7 +45,11 @@ public class MinecraftTranslationRegistry extends TranslatableComponentRenderer<
     @Override
     public @Nullable MessageFormat translate(@Nonnull String key, @Nonnull String locale) {
         // Get the locale string
-        String localeString = MinecraftLocale.getLocaleString(key, locale);
+        String localeString = MinecraftLocale.getLocaleStringIfPresent(key, locale);
+        if (localeString == null) {
+            // Allow fallback components to take priority
+            return null;
+        }
 
         // Replace the `%s` with numbered inserts `{0}`
         Pattern p = stringReplacement;

gradle/libs.versions.toml

@@ -13,7 +13,7 @@ protocol = "3.0.0.Beta1-SNAPSHOT"
 raknet = "0.0.1.Final-SNAPSHOT"
 mcauthlib = "d9d773e"
 mcprotocollib = "1.19.4-math2-SNAPSHOT"
-adventure = "4.12.0-20220629.025215-9"
+adventure = "4.13.1-20230408.192716-3"
 adventure-platform = "4.1.2"
 junit = "5.9.2"
 checkerframework = "3.19.0"