Add location pin SVGs by @RedPurdy

[Reckless-Satoshi]

What does this PR do?

Location pins for the F2F feature. By @RedPurdy

Checklist before merging

• Install pre-commit and initialize it: pip install pre-commit, then pre-commit install. Pre-commit installs git hooks that automatically check the codebase. If pre-commit fails when you commit your changes, please fix the problems it points out.

[Reckless-Satoshi]

Hey @RedPurdy , please leave an invoice for 100K Sats with a long expiration time (+24h) for a dev fund tip for these super cool map makers!

[RedPurdy]

Always happy to contribute on Robosats, thanks for the reward!
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[Reckless-Satoshi]

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