Add Translation for error used data

En & indonesian only for now, please add your language

messages/config.php

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+<?php
+
+return [
+    // string, required, root directory of all source files
+    'sourcePath' => __DIR__ . DIRECTORY_SEPARATOR . '..',
+    // string, required, root directory containing message translations.
+    'messagePath' => __DIR__,
+    // array, required, list of language codes that the extracted messages
+    // should be translated to. For example, ['zh-CN', 'de'].
+    'languages' => ['en', 'id-ID'],
+    // string, the name of the function for translating messages.
+    // Defaults to 'Yii::t'. This is used as a mark to find the messages to be
+    // translated. You may use a string for single function name or an array for
+    // multiple function names.
+    'translator' => 'Yii::t',
+    // boolean, whether to sort messages by keys when merging new messages
+    // with the existing ones. Defaults to false, which means the new (untranslated)
+    // messages will be separated from the old (translated) ones.
+    'sort' => false,
+    // boolean, whether the message file should be overwritten with the merged messages
+    'overwrite' => true,
+    // boolean, whether to remove messages that no longer appear in the source code.
+    // Defaults to false, which means each of these messages will be enclosed with a pair of '@@' marks.
+    'removeUnused' => false,
+    // array, list of patterns that specify which files/directories should NOT be processed.
+    // If empty or not set, all files/directories will be processed.
+    // A path matches a pattern if it contains the pattern string at its end. For example,
+    // '/a/b' will match all files and directories ending with '/a/b';
+    // the '*.svn' will match all files and directories whose name ends with '.svn'.
+    // and the '.svn' will match all files and directories named exactly '.svn'.
+    // Note, the '/' characters in a pattern matches both '/' and '\'.
+    // See helpers/FileHelper::findFiles() description for more details on pattern matching rules.
+    'only' => ['*.php'],
+    // array, list of patterns that specify which files (not directories) should be processed.
+    // If empty or not set, all files will be processed.
+    // Please refer to "except" for details about the patterns.
+    // If a file/directory matches both a pattern in "only" and "except", it will NOT be processed.
+    'except' => [
+        '.svn',
+        '.git',
+        '.gitignore',
+        '.gitkeep',
+        '.hgignore',
+        '.hgkeep',
+        '/messages',
+    ],
+    // Generated file format. Can be either "php", "po" or "db".
+    'format' => 'php',
+    // When format is "db", you may specify the following two options
+    //'db' => 'db',
+    //'sourceMessageTable' => '{{%source_message}}',
+];

messages/en/mtrelt.php

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+<?php
+/**
+ * Message translations.
+ *
+ * This file is automatically generated by 'yii message/extract' command.
+ * It contains the localizable messages extracted from source code.
+ * You may modify this file by translating the extracted messages.
+ *
+ * Each array element represents the translation (value) of a message (key).
+ * If the value is empty, the message is considered as not translated.
+ * Messages that no longer need translation will have their translations
+ * enclosed between a pair of '@@' marks.
+ *
+ * Message string can be used with plural forms format. Check i18n section
+ * of the guide for details.
+ *
+ * NOTE: this file must be saved in UTF-8 encoding.
+ */
+return [
+    'Data can\'t be deleted because it\'s still used by another data.' => 'Data can\'t be deleted because it\'s still used by another data.',
+];

messages/id-ID/mtrelt.php

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+<?php
+/**
+ * Message translations.
+ *
+ * This file is automatically generated by 'yii message/extract' command.
+ * It contains the localizable messages extracted from source code.
+ * You may modify this file by translating the extracted messages.
+ *
+ * Each array element represents the translation (value) of a message (key).
+ * If the value is empty, the message is considered as not translated.
+ * Messages that no longer need translation will have their translations
+ * enclosed between a pair of '@@' marks.
+ *
+ * Message string can be used with plural forms format. Check i18n section
+ * of the guide for details.
+ *
+ * NOTE: this file must be saved in UTF-8 encoding.
+ */
+return [
+    'Data can\'t be deleted because it\'s still used by another data.' => 'Data tidak bisa dihapus karena masih digunakan oleh data lain.',
+];