Convert angular demo to stackblitz to fix no-automatic-preview codesandbox issue

[sequba]

Context

Hotfix

Internal discussion: https://handsoncode.slack.com/archives/C031GBX62SE/p1712742350478229

Types of changes

• [ ] Breaking change (a fix or a feature because of which an existing functionality doesn't work as expected anymore)
• [ ] New feature or improvement (a non-breaking change that adds functionality)
• [ ] Bug fix (a non-breaking change that fixes an issue)
• [ ] Additional language file, or a change to an existing language file (translations)
• [x] Change to the documentation

[github-actions[bot]]

Performance comparison of head (c09a8fb4c1b73f94f468555223e92afea26cbb6b) vs base (40a115c9d95d8e0e9ed8fd5805c5ee1b3d508b27)

                                     testName |   base |   head | change
------------------------------------------------------------------------
                                      Sheet A |  540.5 | 540.96 | +0.09%
                                      Sheet B | 175.12 | 176.64 | +0.87%
                                      Sheet T | 150.98 | 152.67 | +1.12%
                                Column ranges | 562.26 | 558.63 | -0.65%
Sheet A:  change value, add/remove row/column |   14.5 |   15.1 | +4.14%
 Sheet B: change value, add/remove row/column | 136.01 | 132.39 | -2.66%
                   Column ranges - add column | 153.09 | 159.43 | +4.14%
                Column ranges - without batch | 453.14 | 475.46 | +4.93%
                        Column ranges - batch | 118.73 | 125.23 | +5.47%