doc: add IterableMap and IterableSet to store module glossary

[TobieTom]

Fixes #1283

Description

Adds missing documentation for IterableMap and IterableSet collections to the store module's glossary documentation.

Changes

• Added IterableMap entry to Maps section explaining its performance characteristics and benefits
• Added IterableSet entry to Sets section highlighting its optimized iteration capabilities
• Maintained consistent documentation style with other collections

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For more details, open the Copilot Workspace session.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.06%. Comparing base (1f3c071) to head (c8559d2).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1309      +/-   ##
==========================================
- Coverage   80.19%   80.06%   -0.14%     
==========================================
  Files         104      104              
  Lines       14856    14856              
==========================================
- Hits        11914    11894      -20     
- Misses       2942     2962      +20     

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[dj8yfo]

@TobieTom this is the right change to do.
It conflicts now with #1307 , which resolves this too.
I'll close this one.

Any pr should also have all ci passing, besides Add to dev tool project, which is fine to fail, and maybe codecov/patch, codecov/project, depending on the actual content in pr.
This had Test Core/Clippy & fmt job failing. Usually this should be fixed or at least commented on, why it's impossible to fix in context of pr, which may happen.

[dj8yfo]

@TobieTom you can leave a comment under #1300 or #1302 with a single attribute, that you want to work on, if it doesn't intersect with scope of #1307, i'll create a subtask for it (if there's none already), and assign you to it, so it's clearly visible this shouldn't be taken up by anybody else.
You did eventually submit a pr, so there's a moderate chance you will be up to creating another one.