[WMDE-Fundraising] Show field validity indicator based on regex patterns
Closed, ResolvedPublic10 Story Points

Description

Based on the behaviour of the current application text fields should show a validity indicator after entering data into them. The entered data is validated against a regular expression pattern. A valid input is confirmed by a green checkmark icon while an invalid input is indicated by a red bug icon. When initially showing the form the indicator should not be displayed.