chore(react/ribbon): finalize language switcher

apps/client/src/widgets/react/HelpButton.tsx

@@ -0,0 +1,21 @@
+import { CSSProperties } from "preact/compat";
+import { t } from "../../services/i18n";
+import { openInAppHelpFromUrl } from "../../services/utils";
+
+interface HelpButtonProps {
+    className?: string;
+    helpPage: string;
+    style?: CSSProperties;
+}
+
+export default function HelpButton({ className, helpPage, style }: HelpButtonProps) {
+    return (
+        <button
+            class={`${className ?? ""} icon-action bx bx-help-circle`}
+            type="button"
+            onClick={() => openInAppHelpFromUrl(helpPage)}
+            title={t("open-help-page")}
+            style={style}
+        />
+    );
+}