Add a few guides to UI Coverage

[jennifer-shehane]

Adding guides on common use cases so we can feature them on the intro page.

[cypress]

cypress-documentation    Run #261

Run Properties:   Passed #261  •  afcc1206ef: Update docs/ui-coverage/guides/ignore-elements.mdx

Project	cypress-documentation
Branch Review	uicov-guides
Run status	Passed #261
Run duration	07m 16s
Commit	afcc1206ef: Update docs/ui-coverage/guides/ignore-elements.mdx
Committer	Jennifer Shehane
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	0
Skipped	0
Passing	297
View all changes introduced in this branch ↗︎

UI Coverage  10.96%
Untested elements	2357
Tested elements	3

Accessibility  96.86%
Failed rules	0 critical   4 serious   4 moderate   0 minor
Failed elements	438

[pstakoun]

Have not completed review yet, will keep going, but a few things so far

[brian-mann]

@jennifer-shehane it looks like we're being inconsistent with the "paid addon" across the uicov docs...

Currently the "paid addon" is in the "Introduction", and not in the subsequent docs...

...but then we use a totally different "paid addon" banner for pages like:

• Results API
• Troubleshooting

Examples

[jennifer-shehane]

@brian-mann Yes, there is not a consistent design decision on how to show this on pages beyond the Get Started pages.

[jennifer-shehane]

@pstakoun Addressed PR comments in:

• 838ce1f
• d788054

[jennifer-shehane]

@pstakoun Some fixes addressed: 133f5f2

[pstakoun]

I don't fully grok the structure of the "Why use X" and then "Common use cases" – there's nothing else under the "Why use X" so do there have to be these double headings?

[pstakoun]

There are still inconsistencies, but I think it's good enough to merge and iterate since it's blocking other things.