Continue fixing fund us form
- Make wrapping of fieldsets/divs consistent
- Make spacing consistent
- Make elements focusable
- Fully test with keyboard nav
- Fully test with screenreader
- Work out way of having the radio button trigger the text input for "Other" value
- Create error message for when "other" amount does not match pattern
- Make button colour match original form (see #164)
- Add select dropdown icon (part of theme)
- Check disabling of button when "other" is selected but not filled out (did I undo some JS?) — I didn’t, we’ve just got no styling for it
- Test functionality fully in full test mode (lookup how to do this)