Feature: Stock pricing updates for Polygon free tier

[tmyracle]

This PR finishes out #166 (part 1: #195)

Implements the following:

• Job to fetch and save end of day pricing for Polygon free tier users
• Adds test for sync job on basic tier
• Dev tools button to sync pricing on demand if needed
• Fix: disconnect from Prisma after tests to prevent tying up database connections when running tests locally
• Fix: renames import for component in Storybook to avoid build issues
• Remaps security sync jobs to use the new AssetClass enum rather than plaidType

Tests:

Security Pricing:

/claim #166

[Shpigford]

@tmyracle overall makes sense to me. mind getting one other reviewer to sanity-check it?

[crnsh]

@Shpigford @tmyracle I don't mind reviewing.

[tmyracle]

@Shpigford @tmyracle I don't mind reviewing.

That'd be great, thanks!

[Shpigford]

Sounds good! @tmyracle once this is merged i'll get that bounty awarded!