docs,api-ref: design + algolia fixes (#4775)

* fix algolia results on same page

* fix navigation bar for mobile

* fix eslint configurations

* fix github action

* fix search icon on mobile

* fix code block dark mode

www/api-reference/.eslintrc.json

@@ -1,6 +1,7 @@
 {
   "extends": [
     "next/core-web-vitals",
+    "google",
     "../.eslintrc.js"
   ],
   "rules": {