feat: change the build to auto inject css into the page

[danielbarion]

• Keep the styles being generated (react-tooltip.css) - with this, we can prevent this from being a breaking change and release a feature version.
• Update build to auto-inject the CSS into the page
• Update docs about the deprecation of the CSS import

https://codesandbox.io/s/tender-lucy-rq1tsv?file=/src/App.js

Extra: fix Next.js 13 App project cannot use client side component on server side components by adding use client on react-tooltip. Tested with development and production build of Next.js

On a fresh Next.js 13 App project:

[danielbarion]

Beta version released:

yarn add react-tooltip@5.12.0-beta.1014.3

or

npm install react-tooltip@5.12.0-beta.1014.3

[github-actions]

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