Parameter with multiline value gets corrupted when set as hidden
1. add a new parameter (e.g. global) with multiline value like
"-----BEGIN RSA PRIVATE KEY-----
2. check hidden check box
3. uncheck it and see that all "\n" are gone
I suppose that's because a password field is used. I think original implementation handled this properly.
Fixes #13741 - Prevent hidden parameters from erasing newline
Switching the input from textarea to password leads to all newline
characters being stripped from the value. This PR attempts to prevent
this by changing the font of the textarea to a font that displays a
bullet instead of every character, thereby preventing the need to
change the input into a password field.