Add links to PLCT Lab, Fix deadlink in lpi4a ins page

Author: kagura114

Diff for: docs/Installation/licheepi4a.mdx

@@ -10,7 +10,7 @@ import { DownloadLink } from "@site/src/components/ImageLinks";
 
 | 支持设备 |                |
 | ------- | -------------- |
-| Milk-V pioneer | [刷写教程](https://docs.revyos.dev/Installation/milkv-pioneer/) |
+| Milk-V pioneer | [刷写教程](./milkv-pioneer) |
 
 ## 注意！
 

Diff for: docusaurus.config.ts

@@ -94,6 +94,15 @@ const config: Config = {
             }
           ],
         },
+        {
+          title: 'PLCT Lab',
+          items: [
+            {
+              label: 'PLCT 主页',
+              href: 'https://plctlab.org/',
+            },
+          ],
+        },
         {
           title: '社交媒体',
           items: [
@@ -108,7 +117,7 @@ const config: Config = {
           ],
         },
       ],
-      copyright: `Copyright © ${new Date().getFullYear()} RevyOS. Built with Docusaurus.`,
+      copyright: `Copyright © 2023 - ${new Date().getFullYear()} RevyOS by PLCT Lab. Built with Docusaurus.`,
     },
     prism: {
       theme: prismThemes.github,

Diff for: i18n/en/docusaurus-plugin-content-docs/current/Installation/licheepi4a.mdx

@@ -12,7 +12,7 @@ This guide provides instructions for installing RevyOS on the LicheePi4A. For ot
 
 | Device Name |                |
 | ------- | -------------- |
-| Milk-V pioneer | [Installation Guide](https://docs.revyos.dev/Installation/milkv-pioneer/) |
+| Milk-V pioneer | [Installation Guide](./milkv-pioneer) |
 
 ## Important!
 

Diff for: i18n/en/docusaurus-theme-classic/footer.json

@@ -9,7 +9,7 @@
   },
   "link.item.label.镜像刷写需知": {
     "message": "Installation Overview",
-    "description": "The label of footer link with label=Installation Overview linking to /docs/Installation/intro"
+    "description": "The label of footer link with label=镜像刷写需知 linking to /docs/Installation/intro"
   },
   "link.item.label.Github": {
     "message": "Github",
@@ -18,5 +18,25 @@
   "copyright": {
     "message": "Copyright © 2025 RevyOS. Built with Docusaurus.",
     "description": "The footer copyright"
+  },
+  "link.title.PLCT Lab": {
+    "message": "PLCT Lab",
+    "description": "The title of the footer links column with title=PLCT Lab in the footer"
+  },
+  "link.item.label.Lichee Pi 4A": {
+    "message": "Lichee Pi 4A",
+    "description": "The label of footer link with label=Lichee Pi 4A linking to /docs/Installation/licheepi4a"
+  },
+  "link.item.label.Milk-V Pioneer": {
+    "message": "Milk-V Pioneer",
+    "description": "The label of footer link with label=Milk-V Pioneer linking to /docs/Installation/milkv-pioneer"
+  },
+  "link.item.label.PLCT 主页": {
+    "message": "PLCT Homepage",
+    "description": "The label of footer link with label=PLCT 主页 linking to https://plctlab.org/"
+  },
+  "link.item.label.Telegram": {
+    "message": "Telegram",
+    "description": "The label of footer link with label=Telegram linking to https://t.me/+Pi6px22-OsUxM2M1"
   }
 }