[data grid] Set up a back end server with database to be used with the server side data examples

[MBilalShafi]

Summary

Currently we have been using an internal mock server useMockServer to simulate backend data fetching with the data source. It has a few caveats.

1. The proper network requests are not visible in the network tab
2. It's difficult to optimize the dummy backend server for huge data
3. Processing large datasets in mock server on the client are blocking the main thread
4. The examples on the docs pages are not very close to the actual integrations with the users' backend servers.

Examples

No response

Motivation

Context: #13826 (comment)

Search keywords: server side data

[cherniavskii]

A few options to consider:

• https://sql.js.org/ – in-memory SQL database
• https://github.com/dexie/Dexie.js – a minimalistic wrapper for IndexedDB

[michelengelen]

shouldn't be to hard to setup a db on AWS to use.
The hard part is to find a good set of data

or simply use a service for that (e.g. MongoDB, Firebase, etc)

[arminmeh]

shouldn't be to hard to setup a db on AWS to use.

problem with this is that the data is shared with everyone and some people may add some offensive data in the grid
It is better to go with in-memory db or IndexedDB
also, running an actual database comes with additional maintenance and costs