solving multiline - transform prompt to prompt chain

[daretodave]

the input prompt should transform to a prompt chain with arguments being text area

<input>

.. types "jq"

<input value="jq">

.. types "jq <something else>"

<input value="jq"> <textarea value="something else">

• we can theme the argument this way
• arguments can be multi-line (this is the big thing, never seen a terminal do this out of the box)

[daretodave]

wait for the #66