Enable rendering of Mermaid diagrams embedded in markdown on the launchpad page. Adds CSS (.mermaid-diagram-wrapper and svg rules) to ensure responsive, centered diagrams and updates the markdown loader to find code.language-mermaid blocks, render them via mermaid.render, and replace the code block with a styled wrapper. Includes error handling that logs rendering errors and shows a user-facing error box. Changes are localized to internal/launchpad/index.html.
feat(internal/launchpad): add iframe viewer for prototypes and update links loader
This commit introduces an iframe viewer in the launchpad to display prototypes directly within the application. It also updates the links loader to handle prototype links differently, opening them in the iframe instead of a new tab.
The contributing guide has been updated to include a list of required development tools and recommended IDE setup, ensuring that contributors have the necessary tools to work on the project.
