Revert CodeSandbox demos

[budnix]

Context

The PR reverts the CodeSandbox demos. It reverts this PR.

How did you test your changes?

I tested the changes locally.

Types of changes

• Change to the documentation

Checklist:

• I have reviewed the guidelines about Contributing to HyperFormula and I confirm that my code follows the code style of this project.
• I have signed the Contributor License Agreement.
• My changes require a documentation update.

[github-actions]

Performance comparison of head (49b2479) vs base (67bae9e)

                                     testName |   base |   head | change
------------------------------------------------------------------------
                                      Sheet A | 515.05 | 511.93 | -0.61%
                                      Sheet B | 167.34 | 163.42 | -2.34%
                                      Sheet T | 145.36 | 144.77 | -0.41%
                                Column ranges | 512.53 | 509.79 | -0.53%
Sheet A:  change value, add/remove row/column |  14.74 |  13.95 | -5.36%
 Sheet B: change value, add/remove row/column | 129.51 | 131.33 | +1.41%
                   Column ranges - add column | 157.16 | 156.25 | -0.58%
                Column ranges - without batch | 454.65 | 449.57 | -1.12%
                        Column ranges - batch | 113.37 | 111.14 | -1.97%

[budnix]

StackBlitz stays https://handsoncode.slack.com/archives/C031GBX62SE/p1723199357368589?thread_ts=1723126003.900819&cid=C031GBX62SE