Support Docusaurus 2.0 stable

[Fannon]

Docusaurus 2 is out 🎆 ! https://docusaurus.io/blog/2022/08/01/announcing-docusaurus-2.0

The current version of this plugin still has an outdated peer dependency:

npm ERR! Conflicting peer dependency: @docusaurus/[email protected]
npm ERR! node_modules/@docusaurus/core
npm ERR!   peer @docusaurus/core@"^v2.0.0-beta.21" from @cmfcmf/[email protected]
npm ERR!   node_modules/@cmfcmf/docusaurus-search-local
npm ERR!     @cmfcmf/docusaurus-search-local@"0.11.0" from the root project

It can be force installed via

npm i --legacy-peer-deps

But when trying this quicky, I'm not sure if it worked, the search index couldn't be found even after running a build. So maybe some additional work needs to be done to get it on 2.0 officially.

Thanks for working on this plugin, it's really helpful!

[noraj]

In docusaurus v2.1.0 the search bar doesn't display even when having this navbar item:

        {
          type: 'search',
          position: 'right',
        }

[cmfcmf]

I finally added support for Docusaurus v2 in https://github.com/cmfcmf/docusaurus-search-local/commit/f8619b72ec748ac084b53cf7c88157419a27863a.