add transaction timezone offset to axis / category / series in insigh…

…ts explorer

remove deprecated International Monetary Fund exchange rate data source

add refresh accounts, categories and tags button on import dialog

add default value for newly added columns

add asset trends in statistics & analysis (#314)

fix the mobile transaction list page displayed incorrectly when loadi…

…ng more transactions

raise an error if the file does not exist when uploading an artifact

fix cannot delete accounts / transaction categories and tags when usi…

…ng postgres db (#218)

modify color and background image in desktop version

fix the incorrect transaction type and amount when importing some Fir…

…efly III data