try fix #2 loading kubejs lang

Author: DancingSnow0517

src/main/kotlin/icu/takeneko/appwebterminal/util/KubejsI18nSupport.kt

@@ -1,7 +1,9 @@
 package icu.takeneko.appwebterminal.util
 
 import com.google.common.collect.HashBasedTable
+import com.mojang.logging.LogUtils
 import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.JsonDecoder
 import kotlin.io.path.Path
 import kotlin.io.path.div
 import kotlin.io.path.exists
@@ -12,6 +14,7 @@ import kotlin.io.path.nameWithoutExtension
 object KubejsI18nSupport {
     private const val DEFAULT_LANGUAGE = "en_us"
     private val languages =  HashBasedTable.create<String, String, String>()
+    private val logger = LogUtils.getLogger()
 
     private val Json = Json {
         ignoreUnknownKeys = true
@@ -23,11 +26,15 @@ object KubejsI18nSupport {
         basePath.listDirectoryEntries().forEach {
             val langDir = it / "lang"
             if (!langDir.exists()) return@init
-            langDir.listDirectoryEntries().forEach { langFile ->
+            langDir.listDirectoryEntries("*.json").forEach { langFile ->
                 val langName = langFile.nameWithoutExtension
-                val map = Json.decodeFromString<Map<String, String>>(langFile.toFile().readText(Charsets.UTF_8))
-                map.forEach { k, v ->
-                    languages.put(langName, k, v)
+                try {
+                    val map = Json.decodeFromString<Map<String, String>>(langFile.toFile().readText(Charsets.UTF_8))
+                    map.forEach { k, v ->
+                        languages.put(langName, k, v)
+                    }
+                } catch (e: Exception) {
+                    logger.error("Error while reading $langFile", e)
                 }
             }
         }