frontend performance, rpc/rest jwt authentication

frontend/src/lib/intl.ts

@@ -0,0 +1,28 @@
+// @ts-nocheck
+import i18n from "../assets/i18n.yaml"
+
+export default class I18nBuilder {
+    private language: string
+    private textMap = i18n.languages
+
+    constructor(language: string) {
+        this.language = language
+    }
+
+    getLanguage(): string {
+        return this.language
+    }
+
+    setLanguage(language: string): void {
+        this.language = language
+    }
+
+    t(key: string): string {
+        const map = this.textMap[this.language]
+        if (map) {
+            const translation = map[key]
+            return translation ?? 'caption not defined'
+        }
+        return 'caption not defined'
+    }
+}