Docs/vitepress docs

[adithyaappu]

VitePress Based Documentation Website

Based on #1760

This pull request makes a static website using VitePress and publish using GitHub pages.

Preview

https://adithyaappu.github.io/frappe_docker/

Summary of Changes

1. Documentation and VitePress config are contained inside the docs/.
2. VitePress is JavaScript based project, hence a pacakge.json, and lock file for pnpm, a package manager, is also added.
3. md files need a YAML frontmatter / metadata for configuring them in sidebar. All the required frontmatter is added in current files
4. A GitHub actions workflow for building and publishing the changes is added.
5. VitePress specific entries in .gitignore
6. Fixed dead links in various .md files
7. index.md file controlling the home / landing page

Benefits of VitePress

1. People can contribute to docs just by adding MarkDown files. No JavaScript knowledge is needed.
2. Automated sidebar population. (YAML frontmatter is highly recommended)
3. Browser based local search
4. Sidebar navigation, and TOC in each page
5. Dead link detection while building.
6. Dark and Bright theme support out of the box.

To Do

• Update the contribution guide.
• Merging the Comprehensive Getting Started guide added by @duthink into current folder structure.
• Setting up repo for GitHub pages publication. (Finalise the base URL)

Based on comments from #1760

• Add section for FAQ
• Easy Install Setup guide
• @revant I did not understand what you mean by this. Did you mean have support for a tool like Mermaid?

https://adithyaappu.github.io/frappe_docker/getting-started.html#how-to-use-this-guide if diagrams are used they are not rendered as images.

Feedback

1. @Rocket-Quack can you please check and ensure I did not accidentally reverted any recent changes? I have cross checked multiple times, but just wanted to be sure.
2. @DanielRadlAMR @asieftejani let me know if any improvement is needed.

[Rocket-Quack]

LGTM :)