1.3.5

### Bug fixes: * Fix: Checkout page of for invoices of 0 amount shouldn't crash, but 404 @NicolasDorier * Swagger doc: Fix type of property cryptoCode (#3088) @ndeet * Fix bug with fraction amount display in crowdfund app (#3098) @bolatovumar * Swagger doc: Update Swagger docs for webhook event types (#3104) @bolatovumar * Payout/pull payment page would crash if no payment method are set on the store @satwo ### Improvements: * Add crypto code for invoice and pull payment payout API response (#3099) @bolatovumar * Prevent creation of on-chain invoices below the dust limit (#3082) @satwo