docs: Added Single Use Links Section in Docs.

docs: Added Single Use Links Section in Docs.

apps/formbricks-com/app/docs/link-surveys/single-use-links/page.mdx

@@ -0,0 +1,80 @@
+import Image from "next/image";
+
+import EnvVar from "./env-variable.webp";
+import ShareModal from "./share-modal.webp";
+import Settings from "./single-use-setting.webp";
+import Message from "./used-message.webp";
+import Metadata from "./metadata.webp";
+
+export const meta = {
+  title: "Single Use Links",
+  description: "Make sure that each respondent only replies once with single use links.",
+};
+
+#### Link Surveys
+
+# Single Use Links
+
+This guide will help you understand how to generate and use single-use links within our application.
+
+## Purpose
+
+- Single-use links (or one-time / disposable links) are URLs that grant access to a survey only once.
+
+- The primary purpose of single-use links is to assure that no respondent submits a survey twice.
+
+## Using Single-Use Links with Formbricks
+
+Using single-use links with Formbricks is quite straight-forward:
+
+1. In the survey settings, toggle "Single Use Link" on:
+
+   <Image
+     src={Settings}
+     alt="Single use survey settings"
+     quality="100"
+     className="max-w-full rounded-lg sm:max-w-3xl"
+   />
+
+2. When you publish your survey, the following modal will open:
+   <Image
+     src={ShareModal}
+     alt="Share modal with 7 single use links which can be regenerated"
+     quality="100"
+     className="max-w-full rounded-lg sm:max-w-3xl"
+   />
+
+Here, you can copy and generate as many single-use links as you need.
+
+## URL Encryption
+
+You can encrypt single use URLs to assure information to be protected. To enable it, you have to set the correct environment variable:
+
+<Image
+  src={EnvVar}
+  alt="Set the right env var to be able to enable encryption."
+  quality="100"
+  className="max-w-full rounded-lg sm:max-w-3xl"
+/>
+
+## Check suId of a submission
+
+You can find the suId of each submission in the submission meta data. To view it, simplte hover over the Avatar:
+
+<Image
+  src={Metadata}
+  alt="View suId in the submission meta data."
+  quality="100"
+  className="max-w-full rounded-lg sm:max-w-3xl"
+/>
+
+### 'Link used' message
+
+You can customize the 'link used' messaging in the Survey Editor settings:
+
+<Image
+  src={Message}
+  alt="Adjust the message shown to people if a link was already used."
+  quality="100"
+  className="max-w-full rounded-lg sm:max-w-3xl"
+/>

apps/formbricks-com/components/docs/Navigation.tsx

@@ -237,6 +237,7 @@ export const navigation: Array<NavGroup> = [
     links: [
       { title: "Data Prefilling", href: "/docs/link-surveys/data-prefilling" },
       { title: "User Identification", href: "/docs/link-surveys/user-identification" },
+      { title: "Single Use Links", href: "/docs/link-surveys/single-use-links" },
     ],
   },
   {