Ignore command name typos defined using \newcommand or \def

[ajinkya-k]

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Is your feature request related to a problem? Please describe.

LTeX+ marks user defined commands for example \newcommand{\bSigma}{\boldsymbol{\Sigma}} as typos.

Describe the solution you'd like
User defined commands should not be flagged as typos

Describe alternatives you've considered
I usually add the command names to the project dictionary.

Additional context
None