Each field can have a help text, which is configured in the field definition.
- If no help text exists, no indication for it exists.
- If a help text exists, a (i) indicator is shown below the field
- The help text can be wysywig, so it's formatted.
- The wysiwyg text is sanitized so no <script> or onclick="..." may work
- The initial text shown is only one line tall, followed by an ellipsis.
- Any click on the help text (the whole line) shows the full help text
- When the help text expands, the (i) button becomes a (-) button to hide the text again
- Clicking on the expanded help text does not hide it again, because we must ensure that
- Links in the help text can be clicked
- Users can copy text from the help-text