Describe the feature
Create the transaction detail page, where a user can add a new transaction or update an existing transaction. If the user creates a new transactions, all textfields should be empty. If the user wants to edit a transaction, the data should be displayed. The UI should be structured as in the mockup.

Issues to be solved before

• [UI] Create a widget for transactions lists #87
• [UI] Create Latest Transactions page #93

Issues depending on this issue