Audit fix (#147)

* tm syntax: remove verification behind command
It surely has been useful in early stage of the syntax
but it's seems to have no impact now

* tm syntax: add variable fields in "variables"
get rid of non-fixed text width lookbehind, incompatible with PCRE regex

* update changelog for 1.6.0

* update package-lock

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Co-authored-by: Gabin Lefranc <[email protected]>

Author: fdncred