feat: Improve OpenAI Coverage dashboard

[0xSage]

p2: For next iteration:

1. Overing over each tile shows

passing: 100
failing: 100

2. Click on each tile takes us to the specifc set of tests
3. Sort /endpoints aphabetically

[Van-QA]

As discussed, No. 2 will not be included in scope because it requires a lot of work and is difficult to implement for the Eng team. Instead, please visit the Report Portal directly.
Cc: @0xSage