[Console] Triple quote expansion on strings that should not be triple quoted

[jloleysens]

Kibana version:
7.3 (reproduced on pending 7.5)

Describe the bug:
Escaped quotes that should not be triple-quoted are.

Steps to reproduce:
In Console's editor when I use a string starting and ending with an escaped double quote:

PUT bar/_doc/1
{
  "content": "\"triple\""
}

auto-indents gives me here:

PUT bar/_doc/1
{
  "content": """"triple""""
}

Which generates an error, as we now have something starting and ending with four quotes, which is interpreted as a string "triple, followed by an unexpected extra double quote.

Expected behavior:
"\"triple\"" should not be triple quote expanded.

Additional Context
Originally reported here: #44729 (comment)

[elasticmachine]

Pinging @elastic/es-ui

[jloleysens]

#36570 These can can be addressed together (if we can get console to treat """"mystring"""" correctly).

[jloleysens]

Closed by #54474