New features

- Added search button on toolbar to search for specific saving goal.
- Added filter button on toolbar to filter between All/Completed/Ongoing goals.
- Added brand new goal info section in which you can view detailed information about some specific goal including all transactions (withdraw/deposit) history.
- App will now show dialog to setup your preferred currency when opening app for first time.

Improvements & fixes

- Lots of UI related improvements and fixes.
- Fixed app becoming unresponsive for sometime when setting large images, it'll now show progress dialog instead.
- Improved layout of input screen and added material design icons in input fields.
- Improved formatting of currency amount ($1000000 -> $100,000.00)
- Added support for decimal values in currency, i.e app now supports cents aswell instead of whole dollar values.
- Some cleanups and code quality improvements.
