Fix pin size for locations with multiple workshops

[bencodeorg]

My recent change to pin sizes on the CSF workshop map resulted in locations with multiple workshops that included a deep dive workshop remaining in the original size:

Now, pins are all the same size (intro, deep dive, combination of workshops):

Testing story

Tested locally per screenshot above, but no automated tests for this.

Reviewer Checklist:

• Tests provide adequate coverage
• Code is well-commented
• New features are translatable or updates will not break translations
• Relevant documentation has been added or updated
• User impact is well-understood and desirable
• Pull Request is labeled appropriately
• Follow-up work items (including potential tech debt) are tracked and linked

[breville]

Nit: Can you just do { instead of ({?

[bencodeorg]

I did struggle with the syntax here, but the internet suggested that I needed to use parentheses to return an object literal from an arrow function. Happy to adjust to style standards though!

[breville]

Oh, interesting!