Mukwa: vanhemmat versiot ja versiohistoria

Changes
- Fixed transactions without categories not being shown in analytics.
- Fixed the app crashing when trying to import transactions from a csv file.

Changes
- Added budget targets. Budget targets help you plan the amount of money you want to spend each month.
- Mukwa now automatically updates itself on Windows.
Bug fixes
- Fixed the account balance not updating when creating or editing transactions.
- Fixed an issue where the account combobox was not working when creating transactions.
- Fixed the broken combobox in the create account dialog.
- Fixed the sidebar account balances not updating when creating or editing transactions.
- Fixed the buggy text in the payee column when creating a new transaction.
- Fixed a bug on the analytics page where the total spent was not updating when filtering categories.

Changes
- Fixed an issue where combobox items were not being selected when clicked.

Changes
- Fixed an issue where budgets were not being created when changing months on the spending page.
- Added check boxes for selecting transactions.
- Added button to delete selected transactions.