Fix accent color on tinted mode.

We’ve updated some behind-the-scenes stuff to keep the app safe and smooth.

- Performance improvements.

- Deduct the value of partial refunds from charges

Fix bug that may cause the app crashing in the macOS version.

- Added the revenue amount in the inner circle of the small pies.
- Improve the API key validation when tapping outside the text field.

- We've updated our app to include additional currencies and a handy list view for easier searching.

Fix bug that may cause showing 0 revenue

- Currency Conversion: Select your currency in Settings and charges in different currencies will be converted. This is useful if you process payments in different currencies within the same project.

- New date range: Added new 'This Quarter' date range.

- API key check: When you add a new API key, now we check if it works OK retrieving data from Stripe.

- Bug Fixes: Don't count charges that were refunded.

- Show API key hint on Projects view.
- Ability to copy to the clipboard keys.
- Fixes and improvements.

- New option on Widgets: You can now display the data from all your projects combined!

- Fix bug when Country may be null

- New Countries Pie Chart for displaying where your revenue is coming from

- Configure accent colors
- Select a revenue symbol

- Fix a bug on the macOS version when adding new projects

- Bug fixes and improvements.