Add an components page explaining all custom components

[nisabmohd]

I would like a single page that contains all the markdown elements, including standard markdown files such as headings, lists, blockquotes, code blocks (with showLineNumbers and line highlighting), and the tab component I'm using to switch code. It should also cover how to add images, links, the note component, and the stepper. This will help make everything clear for anyone who is going to use this, so only the necessary markdown custom components and standard markdown elements should be included. Documenting all components used in the project won't be useful.

I also want to modify the "Get Started" page to include instructions on where the content should be placed, specifying that content files should be in the .mdx extension with the appropriate frontmatter. Additionally, please include details on how to configure routes, how to clone the GitHub repository, install dependencies using npm i, and add information about other versions in the "Get Started" section.

[shabaz39]

I have made a PR. Kindly review it and let me know if there are any changes to be made.

[nisabmohd]

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