New features

[wysiwys]

Improvements to the benchmarking interface:

• Add option to select all/deselect all values for a given key
• Add button to clear all filters
• Display the current number of charts shown

Additionally, this PR removes the test-fail.yml CI workflow for failure, since it is not compatible with the new folder structure.

[keks]

I think this looks good, just one nit. Let's merge this to see how this behaves in real use :)

[keks]

Ah, one more question -- any reson the failure test workflow is gone?

[wysiwys]

Ah, one more question -- any reson the failure test workflow is gone?

The reasoning behind the removal is that this workflow (which was triggered on PRs) made use of the gh-pages-test branch in this repo to retrieve some sample 'before' data to compare the sample 'after' data (which is slower) against. However, this workflow was no longer compatible with the new folder structure, since we would now need to retrieve the 'before' data from the file for the current PR's base branch (and sha) in this repo.

I couldn't think of a good way to work around this on CI, without enabling upload on push for all branches, so I just removed the workflow, and any other changes seemed like they would be too involved to be in scope for this PR. However, I definitely think it would make sense to find another way to test this on CI!