Transform Expenses into Transaction and add Transaction types

[LucasHFS]

• Re-think the system based on transactions (w income or outcome), based on the ' My expenses online' app.
  • on a transaction creation, we can define if it's a income or an outcome
  • re-design the repeat options to radio buttons
  • we now show a balance and an expected balance
  • change color based on transaction type (income & outcome)