- Remove remark-typescript-tools as it is incompatible with docusaurus v3.
- Replace it with gulp-preserve-typescript-whitespace and some utility functions to achieve the same results.
- This happened to work out somewhat even better since the build time for docs is reduced.
- It also simplifies things since we go straight from TS -> MDX instead of MDX -> TS -> MDX.

- Copy CSS from Redux-toolkit.
- Add external and internal link components for reusability and performance.
- Add introduction section from README to website.
- Move static assets to docs folder.
- Replace markdown links with component links.
  -  This was done because docusaurus has made some improvements with regards to links (preloading, prefetching, etc) as well as broken link detection.

- During previous commits, parts of the example for `createStructuredSelector` was accidentally removed. They are added back to README.
- Fix minor formatting issues in README.

- Add code example files. These will get transpiled to code blocks in MDX during the build step.
- This ensures we maintain accuracy in code examples and also prevents unnecessary redundancies by providing a single source of truth.
- Fix the sidebar so that it somewhat resembles the RTK documentation.
- Internal and external links still need to be converted to JSX.

- Remove all the `gulp` related dependencies.
- Add `compileExamples.ts` which accomplishes the same thing with `ts-node`.

- Add `insertCodeExamples` to allow insertion of code examples into MDX files.
- Rename some of the example files.
-  Replace markdown links with JSX links.

- Remove extraneous dependencies
- Add `ts-node` to devDependencies
- Add `prettier` and `rimraf` to devDependencies
- Simplify the commands inside `website/package.json`

…lify-docs