feat: rework entire project structure

app/components/ui/LangSwitcher.tsx

@@ -0,0 +1,22 @@
+import Button from '@app/components/ui/Button';
+
+import i18n from "@app/lib/i18n";
+
+export default function Lang() {
+    const toggleLanguage = () => {
+        const newLang = i18n.language === "fr" ? "en" : "fr";
+        i18n.changeLanguage(newLang);
+    };
+
+    const nextLangLabel = i18n.language === "fr" ? "EN" : "FR";
+
+    return (
+        <Button
+            onClick={toggleLanguage}
+            label={`Lang: ${nextLangLabel}`}
+            variant="icon"
+        >
+            {nextLangLabel}
+        </Button>
+    )
+}