Update warning message for missing locale

src/misc/i18n.ts

@@ -30,7 +30,7 @@ export default class Replacer {
 			if (text.hasOwnProperty(path)) {
 				text = text[path];
 			} else {
-				console.warn(`path '${path}' not found in '${this.lang}'`);
+				if (this.lang === 'ja') console.warn(`path '${path}' not found`);
 				return key; // Fallback
 			}
 		}
@@ -46,10 +46,10 @@ export default class Replacer {
 		});
 
 		if (error) {
-			console.warn(`key '${key}' not found in '${path}' of '${this.lang}'`);
+			if (this.lang === 'ja') console.warn(`key '${key}' not found in '${path}'`);
 			return key; // Fallback
 		} else if (typeof text !== 'string') {
-			console.warn(`key '${key}' is not string in '${path}' of '${this.lang}'`);
+			if (this.lang === 'ja') console.warn(`key '${key}' is not string in '${path}'`);
 			return key; // Fallback
 		} else {
 			return text;