Add allow_settings_after_format_in_insert setting, OFF by default.
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
v2: s/parser_settings_after_format_compact/allow_settings_after_format_in_insert/ (suggested by vitlibar)
v3: replace ParserSettings with a flag (requested by vitlibar)