chore: revert docus upgrade

Author: pi0

docs/package.json

@@ -8,15 +8,15 @@
   },
   "resolutions": {
     "nuxt-windicss": "npm:nuxt-windicss@latest",
-    "@docus/core": "1.2.3"
+    "@docus/core": "1.1.1"
   },
   "devDependencies": {
-    "@docus/app": "1.3.5",
+    "@docus/app": "1.1.3",
     "@docus/github": "1.0.4",
     "@docus/social-image": "1.0.3",
-    "@docus/theme": "1.2.2",
+    "@docus/theme": "1.1.5",
     "@docus/twitter": "1.0.4",
     "@nuxt/typescript-build": "^2.1.0",
-    "vue-plausible": "^1.3.1"
+    "vue-plausible": "^1.2.1"
   }
 }