docs: Improve license keyfile installation documentation and refactor config structure

docs/unraid-os/troubleshooting/licensing-faq.mdx

@@ -73,21 +73,28 @@ You can upgrade your license at any time from within the %%WebGUI|web-gui%% (***
 
 ### How do I manually install my license keyfile to my USB flash device? {#manual-keyfile-install}
 
-#### Manual (Offline) method
+#### Install via WebGUI download
 
-1. Ensure you have a recent backup of your USB drive. Use [Unraid Connect](../../unraid-connect/overview-and-setup.mdx) (recommended) or the local backup option at ***Main → Flash → Flash Backup***.
-2. Shut down your Unraid server and remove the USB flash device.
-3. Insert the USB flash into another computer.
-4. Open the USB drive and copy your `.key` file into the `/config` folder.
-   *Make sure this is the only `.key` file present—delete any others.*
-5. Safely eject the USB flash device, reinstall it in your server, and reboot.
+1. Navigate to [account.unraid.net/keys](https://account.unraid.net/keys), select **View options** next to your key, then click **Copy Key URL**.
+2. Navigate to your server's ***Tools → Registration***.
+3. Scroll to the bottom of the Registration page, to the **Install Key** section.
+4. Paste the URL into the **Key file URL** field, and click **Install**.
 
-#### Network (Online) method
+#### Install via network share
 
 1. If your server is running and the flash share is visible on your network, navigate to the flash share under **Network**.
 2. Drag and drop the registration key file into the `config` directory.
 3. In the %%WebGUI|web-gui%%, **Stop** the %%array|array%%, then **Start** the %%array|array%% again to apply the new key.
 
+#### Install via USB flash drive
+
+1. Ensure you have a recent backup of your USB drive. Use [Unraid Connect](../../unraid-connect/overview-and-setup.mdx) (recommended) or the local backup option at ***Main → Flash → Flash Backup***.
+2. Shut down your Unraid server and remove the USB flash device.
+3. Insert the USB flash into another computer.
+4. Open the USB drive and copy your `.key` file into the `/config` folder.
+   *Make sure this is the only `.key` file present - delete any others.*
+5. Safely eject the USB flash device, reinstall it in your server, and reboot.
+
 ### How can I determine my registration type? {#registration-type}
 
 Navigate to ***Tools → Registration*** in the %%WebGUI|web-gui%%. Here, you can find your current license type and registration details.

docusaurus.config.ts

@@ -55,7 +55,7 @@ const config: Config = {
   // to replace "en" with "zh-Hans".
   markdown: {
     hooks: {
-      onBrokenMarkdownLinks: "warn",
+      onBrokenMarkdownLinks: () => "warn",
     },
   },
   i18n: {