Add sails-js

[wentelteefje]

This PR adds documentation for sails-js to the Wiki while also re-arranging some pages to increase UX.

[AndrePanin]

Awesome! Just updated chapters ordering.

[nikitayutanov]

What about the Sails functionality in @gear-js/react-hooks? Current README briefly covers it, but I believe frontend devs would benefit from more detailed instructions.

Like Dmitry said, it's CLI generation is not ready yet, but devs can still utilize the hooks manually.

Since the core functionality is based on the generated lib.ts, there's no need to repeat information mentioned in the Overview and sails-js-cli sections. We can just emphasize the slight adjustments that these hooks offer for specific React and general frontend workflows.

Feel free to DM me if you will have any questions regarding it's usage.