Textfields should become multiline when tapped on or when the user is editing

[animator]

Tell us about the task you want to perform and are unable to do so because the feature is not available

URL params or header values can be quite long some times (like bearer token values).
Instead of horizontally scrolling through the field (to verify due to the fear of missing out something) , life will become much easier if the value wraps across multiple lines and one can easily view the full text and edit it.

Example below:

[FreeBono]

Should the text field enter fullscreen mode when it receives focus?

[TeeWrath]

@animator Hello Ankit, I have started working on this and raised a PR to get started, need your reviews to move forward in the right direction. Thanks.
PR - #828