Link to testbench is broken

[humble-barnacle001]

Describe the bug

The link to testbench on the documentation page is broken

To Reproduce

Steps to reproduce the behavior:

1. Go to 'testbench documentation'
2. Click on 'https://circuitverse.org/testbench'
4. See error

Expected behavior

The link should go to testbench at https://circuitverse.org/testbench.html

Additional context

I think this may be a minor bug, but I also suspect that it may be due to the redirect definition which should automatically redirect '/.html' to '/'

Are you working on this issue? (Yes/No)

Yes, but only on Testbench page

[humble-barnacle001]

Check pr https://github.com/CircuitVerse/CircuitVerseDocs/pull/284