* Rough draft of issue system
* Simplify design
* Remove stale files from merge conflicts
* STI for issues
* Cleanup
* Improve Synth api key flow
* Stub api key for test
* User tickers as primary lookup symbol instead of isin
* Add security price provider
* Fetch security prices in bulk to improve sync performance
* Fetch prices in bulk, better mocking for tests
* Implement Synth as an exchange rate provider
* Add assertions to provider interface test
* Assert the correct provider error is raised
* Remove unnecessary parens
