Kakei Prem: Expense, Income, Budget, Money Manager Apk

New feature:
- support inputting amount by calculator UI
Improvement:
- highlight legend when pie chart focused
- improve month picker UI in budget page
- show target date/month in create/edit screen
Bugfix:
- fix budget page custom categories' icon is not loaded initially
- fix dashboard detail screen crash due to custom categories' icon is not loaded initially