Add new site link for 图库

Added a new site link for '图库' with its icon.

Author: SeRazon

src/assets/siteLinks.json

@@ -24,6 +24,11 @@
     "name": "短链",
     "link": "https://a.xhsr.org.cn/admin/"
   },
+  {
+    "icon": "Albums",
+    "name": "图库",
+    "link": "https://gallery.xhsr.org.cn"
+  },
   {
     "icon": "LaptopCode",
     "name": "站点监测",