Move tray to module

[wsdOgawa]

変更の説明

This pull request updates the server-side tray module to use three end points instead of the current nine Post: https://privateinvoice.io/breaking-down-the-tray-module/

• getCountOfInvoice, /getCountOfArchive, /getCountOfDraft merged into /getCount
• /getFolderOfInvoice, /getFolderOfArchive, /getFolderOfDraft merged into /getFolder
• /getTotalOfInvoice, /getTotalOfArchive, /getTotalOfDraft merged into /getTotal
• Update postman collection to account for changes
• Updated application to fix tray counts
• Update application to show tray after selection
• Update application to get totals for selected tray
• Fixed random chance for user to not get test ganache balance on signup
• Fixed API call to remote node to get seller's ethereum address
• Removed references to test images not included in the repository

Remaining:

• Get update archive selection
• Update Swagger documentation for end points

IssueのLink

https://github.com/WebServiceDevelopment/PrivateInvoice/issues/58

Screenshots