Update SD card advice in logging and general concepts

[hamishwillee]

@bkueng This attempts to update the advice on what SD cards to use that you provided in https://discord.com/channels/1022170275984457759/1195469811229147236

The problem with the previous docs are that they show logs for Pixracer and Pixhawk on 5+ years old cards. It's hard for users to know the relevance, of that information, so I have deleted the table and just noted:

• the minimum write speed you need and that many common cards get orders of magnitude better.
• That max write speed and spikes are the problem, and how to test. Also a finger in the air that 200ms would be risky (can we be more precise?)

1. I also want to recommend a card. I used the one from the original docs, but just changed to remove "the best we ever found". What should be used now?
2. This says the maximum size card supported is 32 Gb. That was written in 2018. What is the specification we support now and the corresponding max size card?

[github-actions[bot]]

No flaws found

[hamishwillee]

Self merging. I don't think it a great use of my time to chase the missing data in that table. If it is useful, I hope that people will populate it in time.