[feature] Add clear architectural diagrams on how KFP works and fill out the operator guides

[cjidboon94]

Feature Area

/area docs

What feature would you like to see?

For operators, contributors and administrators of KFP, it would be great to have clear diagrams and documentation of KFP v2's architecture. How, for example, Launcher, Driver and Compiler components relate to each other in the backend. ( https://cloud-native.slack.com/archives/C073N7BMLB1/p1719335776541249 ) Parameters and tweaks to improve KFP performance and stability (similar to https://github.com/kubeflow/pipelines/issues/5333 )

What is the use case or pain point?

This will help new KFP admins and contributors better understand the inner workings and what knobs one can turn to configure KFP to the desired state.

Is there a workaround currently?

Asking on slack, stackoverflow, GH issues and praying for answers, or diving into the code and try to figure it out yourself.

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