docs,api-ref: added search filters (#4830)

* initial implementation of search modal

* added hit and search suggestions

* added support for multiple indices

* updated sample env

* added close when click outside dropdown

* test for mobile

* added mobile design

* added shortcut

* dark mode fixes

* added search to docs

* added plugins filter

* added React import

* moved filters to configurations

* handled error on page load

* change suggestion text

* removed hits limit

* handle select all

* open link in current tab

* change highlight colors

* added support for shortcuts + auto focus

* change header and footer

* redesigned search ui

www/api-reference/providers/modal.tsx

@@ -1,6 +1,6 @@
 "use client"
 
-import React, { useContext, useEffect, useState } from "react"
+import React, { useContext, useState } from "react"
 import { createContext } from "react"
 import Modal, { ModalProps } from "../components/Modal"
 
@@ -23,14 +23,6 @@ const ModalProvider = ({ children }: ModalProviderProps) => {
     setModalProps(null)
   }
 
-  useEffect(() => {
-    if (modalProps) {
-      document.body.setAttribute("data-modal", "opened")
-    } else {
-      document.body.removeAttribute("data-modal")
-    }
-  }, [modalProps])
-
   return (
     <ModalContext.Provider
       value={{