Simplify "Working with the Ensemble" Notebook

[wilsonbb]

Change Description

Finishes addressing https://github.com/lincc-frameworks/tape/issues/392 simplifying the "Working with the Ensemble" notebook to focus on how the Ensemble manages and syncs its dataframes.

This simplification is allowed by the addition of a common operations tutorial added by @dougbrn in https://github.com/lincc-frameworks/tape/pull/395

In addition toe light_curve package example was added to the batch showcase notebook.

• [ ] My PR includes a link to the issue that I am addressing

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Before [0448c67c]	After [dc0e6fc5]	Ratio	Benchmark (Parameter)
45.3±0.7ms	44.9±0.3ms	0.99	benchmarks.time_batch
47.6±0.2ms	47.3±0.4ms	0.99	benchmarks.time_prune_sync_workflow

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.53%. Comparing base (0448c67) to head (72692c6).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #401 +/- ## ======================================= Coverage 95.53% 95.53% ======================================= Files 25 25 Lines 1702 1702 ======================================= Hits 1626 1626 Misses 76 76 ```

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[wilsonbb]

This looks good, as we've discussed adding 1 or 2 diagrams could really help here as well.

This was a good suggestion, and I've added two diagrams and altered some phrasing.

[dougbrn]

Thanks for adding the diagrams @wilsonbb , it looks like they're off-center in the readthedocs rendering just fyi