* Allow negative amount for expenses to be entered
- an expense becomes an income
- this does not affect calculations, i.e. an income can be split just like an expense
* Incomes should not be reimbursements
when entering a negative number
- deselect 'isReimbursement'
- hide reimbursement checkbox
* Change captions when entering a negative number
- "expense" becomes "income"
- "paid" becomes "received"
* Format incomes on expense list
- replace "paid by" with "received by"
* Format incomes on "Stats" tab
- a group's or participants balance might be negative
- in this case "spendings" will be "earnings" (display accordingly)
- always display positive numbers
- for active user: highlight spendings/earnings in red/green
* Fix typo
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Co-authored-by: Sebastien Castiel <sebastien@castiel.me>
* feat: initialise a new totals tab with basic UI
* fix: update group tabs and add stats page
* fix: styling within the new elements
* Prettier
* Display active user expenses only if active user is set
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Co-authored-by: Sebastien Castiel <sebastien@castiel.me>
